chore(deps-dev): bump esbuild from 0.20.2 to 0.21.1

Bumps [esbuild](https://github.com/evanw/esbuild) from 0.20.2 to 0.21.1.
- [Release notes](https://github.com/evanw/esbuild/releases)
- [Changelog](https://github.com/evanw/esbuild/blob/main/CHANGELOG.md)
- [Commits](evanw/esbuild@v0.20.2...v0.21.1)

---
updated-dependencies:
- dependency-name: esbuild
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

action-src/package.json

@@ -21,7 +21,7 @@
     "@cspell/cspell-bundled-dicts"
   ],
   "devDependencies": {
-    "esbuild": "^0.20.2"
+    "esbuild": "^0.21.1"
   },
   "dependencies": {
     "@actions/core": "^1.10.1",