Merge pull request #533 from XcodesOrg/matt/testLocalizationValidation

adds localization validation on PR's

.github/workflows/xcstrings.yml

@@ -0,0 +1,22 @@
+name: XCStrings Validation
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - main
+  pull_request:
+
+jobs:
+  test:
+    runs-on: macos-13
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Clone SwiftPolyglot
+      run: git clone https://github.com/appdecostudio/SwiftPolyglot.git
+      
+    - name: validate translations
+      run: |
+        swift build --package-path ./SwiftPolyglot --configuration release
+        swift run --package-path ./SwiftPolyglot swiftpolyglot "ca,de,el,es,fi,fr,hi,it,ja,ko,nl,pl,pt-BR,ru,tr,uk,zh-Hans,zh-Hant" --errorOnMissing