ci: pin the shared workflow to v1

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.gitea/workflows/build.yaml

@@ -5,7 +5,7 @@ on:
     tags: ['v*']
 jobs:
   android:
-    uses: self:KofTwentyTwo/ci-workflows/.gitea/workflows/android.yaml@main
+    uses: self:KofTwentyTwo/ci-workflows/.gitea/workflows/android.yaml@v1
     secrets: inherit
     with:
       node-version: '24.11.1'