Switch workflow actions to git refs

.github/workflows/build.yml

@@ -19,18 +19,19 @@ jobs:
         ]
     steps:
       - name: Cancel previous jobs
-        uses: styfle/[email protected]
+        uses: styfle/cancel-workflow-action@b173b6e
+
         with:
           access_token: ${{ github.token }}
       - name: Git - Checkout
-        uses: actions/checkout@v3.6.0
+        uses: actions/checkout@f43a0e5
         with:
           ref: ${{ github.ref }}
       - name: Select Xcode Version
-        uses: maxim-lobanov/setup-xcode@v1.6.0
+        uses: maxim-lobanov/setup-xcode@60606e2
         with:
           xcode-version: '15.0'
-      - uses: ruby/setup-ruby@v1.171.0
+      - uses: ruby/setup-ruby@22fdc77
         with:
           ruby-version: "3.2"
           bundler-cache: true