actions: update to macos-14 (arm64)

Author: gperciva

.github/workflows/compile.yml

@@ -84,12 +84,12 @@ jobs:
       run: test -z "$(git status --porcelain=v1)"
   macOS:
     name: macOS
-    runs-on: macOS-13
+    runs-on: macOS-14
     steps:
     - name: Checkout code
       uses: actions/checkout@v4
     - name: Install software
-      run: brew install automake
+      run: brew install automake libtool
     - name: Run autoreconf
       run: autoreconf -i
     - name: Configure with clang