chore(dev-deps): bump esbuild

Bumps the dev-dependencies group with 1 update in the / directory: [esbuild](https://github.com/evanw/esbuild).


Updates `esbuild` from 0.20.2 to 0.21.5
- [Release notes](https://github.com/evanw/esbuild/releases)
- [Changelog](https://github.com/evanw/esbuild/blob/main/CHANGELOG.md)
- [Commits](evanw/esbuild@v0.20.2...v0.21.5)

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

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

Author: dependabot[bot]

package.json

@@ -22,7 +22,7 @@
     "@google/clasp": "^2.4.2",
     "@types/eslint__js": "^8.42.3",
     "@types/google-apps-script": "^1.0.83",
-    "esbuild": "^0.20.2",
+    "esbuild": "^0.21.5",
     "esbuild-gas-plugin": "^0.8.0",
     "eslint": "^9.4.0",
     "eslint-config-prettier": "^9.1.0",