tests: drop prettier-2 (#7971)

At some point the version of Jest we ran didn't support prettier 3, but
now it does.

Author: glasser

jest.config.base.js

@@ -23,5 +23,4 @@ export default {
     // Ignore '.js' at the end of imports; part of ESM support.
     '^(\\.{1,2}/.*)\\.js$': '$1',
   },
-  prettierPath: createRequire(import.meta.url).resolve('prettier-2'),
 };

package-lock.json

@@ -92,7 +92,6 @@
     "nock": "13.5.5",
     "node-fetch": "2.7.0",
     "prettier": "3.3.3",
-    "prettier-2": "npm:[email protected]",
     "qs-middleware": "1.0.3",
     "requisition": "1.7.0",
     "rollup": "3.29.5",

package.json

@@ -125,10 +125,5 @@
       matchPackageNames: ["rollup"],
       allowedVersions: "4.x",
     },
-    // Only needed until Jest supports prettier@3 for snapshots
-    {
-      "matchPackageNames": ["prettier-2"],
-      "allowedVersions": "2.x"
-    },
   ]
 }