Merge pull request 'ci(m9): accept Xcode >= 14 in toolchain assert (#123)' (#124) from feat/123-xcode-ge-14 into milestone/m9-monterey

The grep on "Xcode 14." pinned CI to the 14.x series, blocking builds
on macOS 14 / Xcode 16 runners. Parse the major version and require
>= 14 instead.

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.gitea/workflows/macos.yml

@@ -21,8 +21,14 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
-      - name: Assert Xcode 14 toolchain
-        run: xcodebuild -version | grep -E "Xcode 14." || (echo "Unexpected Xcode version" && exit 1)
+      - name: Assert Xcode 14+ toolchain
+        run: |
+          line="$(xcodebuild -version | head -1)"
+          major="$(printf '%s' "$line" | sed -n 's/^Xcode \([0-9][0-9]*\)\..*/\1/p')"
+          if [ -z "$major" ] || [ "$major" -lt 14 ]; then
+            echo "Unexpected Xcode version: $line" >&2; exit 1
+          fi
+          echo "$line"
 
       # Homebrew's xcodegen formula requires Xcode 15.3, which cannot be
       # installed on macOS 12 (#109). The script installs a pinned