pin actions

Author: dimbleby

.github/workflows/build.yml

@@ -53,7 +53,7 @@ jobs:
             rust: stable
             target: x86_64-pc-windows-msvc
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           persist-credentials: false
       - name: Install Rust (rustup)