chore: drop eslint-plugin-markdown dep

[JounQin]

Initial checklist

• I read the support docs
• I read the contributing guide
• I agree to follow the code of conduct
• I searched issues and discussions and couldn’t find anything or linked relevant results below
• I made sure the docs are up to date
• I included tests (or that’s not needed)

Description of changes

related #477

[changeset-bot]

🦋 Changeset detected

Latest commit: 66ec745

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

Name	Type
eslint-mdx	Minor
eslint-plugin-mdx	Minor

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[github-actions]

📊 Package size report   No changes

File	Before	After
Total (Includes all files)	1.5 MB	1.5 MB
Tarball size	173.8 kB	173.8 kB

Unchanged files

File	Size
.babelrc	35 B
.changeset/config.json	372 B
.changeset/README.md	510 B
.codesandbox/ci.json	119 B
.editorconfig	161 B
.eslintrc.js	837 B
.gitattributes	35 B
.github/FUNDING.yml	204 B
.github/workflows/ci.yml	1.1 kB
.github/workflows/codeql.yml	794 B
.github/workflows/pkg-size.yml	699 B
.github/workflows/release.yml	1.4 kB
.lintstagedrc.js	50 B
.simple-git-hooks.js	51 B
.yarn/plugins/plugin-prepare-lifecycle.cjs	202 B
.yarnrc.yml	332 B
CHANGELOG.md	283 B
CONTRIBUTING.md	931 B
LICENSE	1.1 kB
package.json	3.4 kB
packages/eslint-mdx/CHANGELOG.md	25.1 kB
packages/eslint-mdx/package.json	1.1 kB
packages/eslint-mdx/README.md	11.7 kB
packages/eslint-mdx/shim.d.ts	1.4 kB
packages/eslint-mdx/src/helpers.ts	4.3 kB
packages/eslint-mdx/src/index.ts	121 B
packages/eslint-mdx/src/meta.ts	87 B
packages/eslint-mdx/src/parser.ts	2.5 kB
packages/eslint-mdx/src/sync.ts	384 B
packages/eslint-mdx/src/tokens.ts	6.8 kB
packages/eslint-mdx/src/types.ts	1.5 kB
packages/eslint-mdx/src/worker.ts	23.3 kB
packages/eslint-mdx/tsconfig.json	131 B
packages/eslint-plugin-mdx/CHANGELOG.md	27.9 kB
packages/eslint-plugin-mdx/package.json	1.0 kB
packages/eslint-plugin-mdx/README.md	11.7 kB
packages/eslint-plugin-mdx/src/configs/base.ts	305 B
packages/eslint-plugin-mdx/src/configs/code-blocks.ts	1.0 kB
packages/eslint-plugin-mdx/src/configs/flat.ts	705 B
packages/eslint-plugin-mdx/src/configs/index.ts	439 B
packages/eslint-plugin-mdx/src/configs/overrides.ts	725 B
packages/eslint-plugin-mdx/src/configs/recommended.ts	2.4 kB
packages/eslint-plugin-mdx/src/helpers.ts	620 B
packages/eslint-plugin-mdx/src/index.ts	128 B
packages/eslint-plugin-mdx/src/meta.ts	87 B
packages/eslint-plugin-mdx/src/processors/helpers.ts	633 B
packages/eslint-plugin-mdx/src/processors/index.ts	198 B
packages/eslint-plugin-mdx/src/processors/options.ts	1.8 kB
packages/eslint-plugin-mdx/src/processors/remark.ts	1.8 kB
packages/eslint-plugin-mdx/src/processors/types.ts	241 B
packages/eslint-plugin-mdx/src/rules/.eslintrc	124 B
packages/eslint-plugin-mdx/src/rules/index.ts	138 B
packages/eslint-plugin-mdx/src/rules/remark.ts	3.6 kB
packages/eslint-plugin-mdx/src/rules/types.ts	415 B
packages/eslint-plugin-mdx/tsconfig.json	131 B
patches/eslint+8.56.0.patch	555 B
patches/smartwrap+2.0.2.patch	461 B
patches/string-width-cjs+4.2.3.patch	444 B
patches/tty-table+4.2.3.patch	926 B
patches/wrap-ansi-cjs+7.0.0.patch	489 B
patches/yargs+17.7.2.patch	124.6 kB
README.md	11.7 kB
test/__snapshots__/fixtures.test.ts.snap	57.5 kB
test/__snapshots__/flat-config.test.ts.snap	823 B
test/__snapshots__/parser.test.ts.snap	1.1 MB
test/fixtures.test.ts	2.7 kB
test/fixtures/287.mdx	204 B
test/fixtures/292.mdx	191 B
test/fixtures/334.mdx	70 B
test/fixtures/336.mdx	178 B
test/fixtures/367.mdx	87 B
test/fixtures/371.mdx	75 B
test/fixtures/380.mdx	11.0 kB
test/fixtures/391.mdx	62 B
test/fixtures/429.mdx	52 B
test/fixtures/435.mdx	134 B
test/fixtures/437.mdx	32 B
test/fixtures/445.mdx	188 B
test/fixtures/450.mdx	418 B
test/fixtures/488.mdx	78 B
test/fixtures/acorn.mdx	860 B
test/fixtures/adjacent.mdx	50 B
test/fixtures/async/.remarkrc	67 B
test/fixtures/async/test.md	15 B
test/fixtures/basic.mdx	405 B
test/fixtures/basic.tsx	77 B
test/fixtures/blank-lines.mdx	768 B
test/fixtures/code-blocks.md	511 B
test/fixtures/comments.mdx	162 B
test/fixtures/details.mdx	881 B
test/fixtures/dir.mdx/.gitkeep	0 B
test/fixtures/esm/.remarkrc.mjs	103 B
test/fixtures/esm/test.md	15 B
test/fixtures/flat-config/code-blocks.mdx	76 B
test/fixtures/jsx-in-list.mdx	810 B
test/fixtures/leading-spaces.mdx	42 B
test/fixtures/markdown.md	5 B
test/fixtures/no-unescaped-entities.mdx	99 B
test/fixtures/no-unused-expressions.mdx	90 B
test/fixtures/processor.mdx	13 B
test/fixtures/remark.md	171 B
test/fixtures/remark.mdx	169 B
test/fixtures/style/.remarkrc	228 B
test/fixtures/style/nested.md	10 B
test/fixtures/style/plugin1.cjs	26 B
test/fixtures/style/plugin2.mjs	24 B
test/fixtures/unicorn.jsx	119 B
test/fixtures/unicorn.mdx	118 B
test/flat-config.test.ts	1.0 kB
test/helpers.test.ts	874 B
test/helpers.ts	548 B
test/parser.test.ts	4.6 kB
test/remark.test.ts	2.8 kB
tsconfig.base.json	235 B
tsconfig.json	259 B
tsconfig.lib.json	195 B

_{🤖 This report was automatically generated by pkg-size-action}

[codesandbox-ci]

This pull request is automatically built and testable in CodeSandbox.

To see build info of the built libraries, click here or the icon next to each commit SHA.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (6615813) to head (232cdcf).

Additional details and impacted files

@@            Coverage Diff             @@
##            master      #550    +/-   ##
==========================================
  Coverage   100.00%   100.00%            
==========================================
  Files           19        21     +2     
  Lines          196       304   +108     
  Branches        33        46    +13     
==========================================
+ Hits           196       304   +108     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.