fix(deps): bump @probot/adapter-azure-functions from 1.0.20 to 1.0.21

Bumps [@probot/adapter-azure-functions](https://github.com/probot/adapter-azure-functions) from 1.0.20 to 1.0.21.
- [Release notes](https://github.com/probot/adapter-azure-functions/releases)
- [Commits](probot/adapter-azure-functions@v1.0.20...v1.0.21)

---
updated-dependencies:
- dependency-name: "@probot/adapter-azure-functions"
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

package-lock.json

@@ -11,7 +11,7 @@
   "license": "ISC",
   "repository": "github:probot/example-azure-function",
   "dependencies": {
-    "@probot/adapter-azure-functions": "^1.0.20"
+    "@probot/adapter-azure-functions": "^1.0.21"
   },
   "devDependencies": {
     "@azure/functions": "^3.2.0",