Template updates (Swift 5.7)

.github/workflows/api-breakage.yml

@@ -0,0 +1,22 @@
+# This will be interesting to see how often AWS break there own APIs
+name: API breaking changes
+
+on:
+  pull_request:
+
+jobs:
+  linux:
+    runs-on: ubuntu-latest
+    container:
+      image: swift:5.7
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v3
+      with:
+        fetch-depth: 0
+    # https://github.com/actions/checkout/issues/766
+    - name: Mark the workspace as safe
+      run: git config --global --add safe.directory ${GITHUB_WORKSPACE}
+    - name: API breaking changes
+      run: |
+        swift package diagnose-api-breaking-changes origin/${GITHUB_BASE_REF}