chore: fix checklist

Author: ldez

Diff for: .github/new-linter-checklist.md

@@ -11,7 +11,7 @@ In order for a pull request adding a linter to be reviewed, the linter and the P
 
 - [ ] It must not be a duplicate of another linter or a rule of a linter (the team will help to verify that).
 - [ ] It must have a valid license (AGPL is not allowed), and the file must contain the required information by the license, ex: author, year, etc.
-- [ ] It must use Go version >= 1.21
+- [ ] It must use Go version <= 1.21
 - [ ] The linter repository must have a CI and tests.
 - [ ] It must use [`go/analysis`](https://golangci-lint.run/contributing/new-linters/).
 - [ ] It must have a valid tag, ex: `v1.0.0`, `v0.1.0`.