Bump esbuild from 0.20.2 to 0.21.2

Bumps [esbuild](https://github.com/evanw/esbuild) from 0.20.2 to 0.21.2.
- [Release notes](https://github.com/evanw/esbuild/releases)
- [Changelog](https://github.com/evanw/esbuild/blob/main/CHANGELOG.md)
- [Commits](evanw/esbuild@v0.20.2...v0.21.2)

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

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -14,7 +14,7 @@
     "simple-get": "^4.0.0"
   },
   "devDependencies": {
-    "esbuild": "^0.20.0",
+    "esbuild": "^0.21.2",
     "standard": "^17.0.0"
   },
   "homepage": "https://github.com/goto-bus-stop/setup-zig",