ci: do not use namespace runner anymore

.github/workflows/release-mobile.yml

@@ -117,31 +117,8 @@ jobs:
           name: android
           path: packages/frontend/apps/android/dist
 
-  determine-ios-runner:
-    runs-on: ubuntu-latest
-    needs:
-      - build-ios-web
-    outputs:
-      RUNNER: ${{ steps.runner.outputs.RUNNER }}
-    steps:
-      - name: Determine Runner
-        id: runner
-        # Randomly pick runner with 80% chance for blaze/macos-14 and 20% chance for namespace-profile-macos
-        # blaze/macos-14 is free but has limited concurrency
-        run: |
-          RANDOM_NUMBER=$(( $RANDOM % 100 + 1 ))
-          if [ $RANDOM_NUMBER -le 20 ]; then
-            echo "Selected namespace-profile-macos (20% probability)"
-            echo "RUNNER=namespace-profile-macos" >> $GITHUB_OUTPUT
-          else
-            echo "Selected blaze/macos-14 (80% probability)"
-            echo "RUNNER=blaze/macos-14" >> $GITHUB_OUTPUT
-          fi
-
   ios:
-    runs-on: ${{ github.ref_name == 'canary' && 'macos-latest' || needs.determine-ios-runner.outputs.RUNNER }}
-    needs:
-      - determine-ios-runner
+    runs-on: ${{ github.ref_name == 'canary' && 'macos-latest' || 'blaze/macos-14' }}
     steps:
       - uses: actions/checkout@v4
       - name: Download mobile artifact