chore(deps): update dependency esbuild to ^0.21.0 (#537)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package-lock.json

@@ -32,7 +32,7 @@
     "@octokit/tsconfig": "^3.0.0",
     "@types/jest": "^29.0.0",
     "@types/node": "^20.0.0",
-    "esbuild": "^0.20.0",
+    "esbuild": "^0.21.0",
     "express": "^4.17.1",
     "fetch-mock": "npm:@gr2m/fetch-mock@9.11.0-pull-request-644.1",
     "glob": "^10.0.0",