test(mobile/ios): run Swift push tests in CI

Co-authored-by: Tom Brow <tomb@block.xyz>
Signed-off-by: Tom Brow <tomb@block.xyz>

.github/workflows/ci.yml

@@ -64,6 +64,7 @@ jobs:
               - 'scripts/check-file-sizes-core.mjs'
               - 'scripts/check-file-sizes-core.test.mjs'
               - 'mobile/**'
+              - 'crates/buzz-push-gateway/tests/vectors/**'
               - 'scripts/mobile-release.sh'
               - 'scripts/mobile-worktree-overrides.sh'
               - 'scripts/mobile-worktree-clean.sh'
@@ -849,6 +850,19 @@ jobs:
       - name: Build Android debug APK
         run: just mobile-build-android
 
+  mobile-swift:
+    name: Mobile Swift
+    runs-on: macos-latest
+    timeout-minutes: 10
+    needs: [changes]
+    if: needs.changes.outputs.mobile == 'true'
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6
+      - name: Build
+        run: swift build --package-path mobile/ios/BuzzPushKit
+      - name: Test
+        run: swift test --package-path mobile/ios/BuzzPushKit
+
   security:
     name: Security
     runs-on: ubuntu-latest