.github: Bump actions/create-github-app-token from 2.0.6 to 2.2.1

Bumps [actions/create-github-app-token](https://github.com/actions/create-github-app-token) from 2.0.6 to 2.2.1.
- [Release notes](https://github.com/actions/create-github-app-token/releases)
- [Commits](df432ceedc...29824e69f5)

---
updated-dependencies:
- dependency-name: actions/create-github-app-token
  dependency-version: 2.2.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

.github/workflows/request-dataplane-review.yml

@@ -18,7 +18,7 @@ jobs:
       - name: Check out code
         uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
       - name: Get access token
-        uses: actions/create-github-app-token@df432ceedc7162793a195dd1713ff69aefc7379e # v2.0.6
+        uses: actions/create-github-app-token@29824e69f54612133e76f7eaac726eef6c875baf # v2.2.1
         id: generate-token
         with:
           # Get token for app: https://github.com/apps/change-visibility-bot

.github/workflows/update-flake.yml

@@ -27,7 +27,7 @@ jobs:
         run: ./update-flake.sh
 
       - name: Get access token
-        uses: actions/create-github-app-token@df432ceedc7162793a195dd1713ff69aefc7379e # v2.0.6
+        uses: actions/create-github-app-token@29824e69f54612133e76f7eaac726eef6c875baf # v2.2.1
         id: generate-token
         with:
           # Get token for app: https://github.com/apps/tailscale-code-updater

.github/workflows/update-webclient-prebuilt.yml

@@ -23,7 +23,7 @@ jobs:
           ./tool/go mod tidy
 
       - name: Get access token
-        uses: actions/create-github-app-token@df432ceedc7162793a195dd1713ff69aefc7379e # v2.0.6
+        uses: actions/create-github-app-token@29824e69f54612133e76f7eaac726eef6c875baf # v2.2.1
         id: generate-token
         with:
           # Get token for app: https://github.com/apps/tailscale-code-updater