ci(android): stop yes|sdkmanager SIGPIPE from failing the step

The SDK install succeeds (reaches 100% unzip) but the step reported exit
141: with -o pipefail, 'yes' dying of SIGPIPE (128+13) once sdkmanager
closes the pipe poisons the pipeline status. Disable pipefail for that line
so only sdkmanager's exit gates success.

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

.gitea/workflows/pr-checks.yml

@@ -44,9 +44,14 @@ jobs:
         uses: android-actions/setup-android@v3
 
       # Install exactly what the build targets so it never depends on AGP's
-      # build-time auto-download. `yes |` accepts any license prompts.
+      # build-time auto-download. `yes |` accepts any license prompts; `set
+      # +o pipefail` so `yes` dying with SIGPIPE (exit 141) once sdkmanager
+      # closes the pipe doesn't fail the step -- sdkmanager's own exit, last in
+      # the pipeline, still gates success.
       - name: Install Android SDK packages
-        run: yes | sdkmanager "platform-tools" "platforms;android-35" "build-tools;35.0.0"
+        run: |
+          set +o pipefail
+          yes | sdkmanager "platform-tools" "platforms;android-35" "build-tools;35.0.0"
 
       - name: Cache Gradle
         uses: actions/cache@v4