workflows: hash pin more Actions (#241)

Signed-off-by: Patrick Linnane <patrick@linnane.io>

.github/workflows/package-builds-stable.yml

@@ -13,7 +13,7 @@ jobs:
     #runs-on: alrest-techarohq
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       with:
         persist-credentials: false
         fetch-tags: true
@@ -28,7 +28,7 @@ jobs:
       uses: Homebrew/actions/setup-homebrew@master
 
     - name: Setup Homebrew cellar cache
-      uses: actions/cache@v4
+      uses: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684 # v4.2.3
       with:
         path: |
           /home/linuxbrew/.linuxbrew/Cellar
@@ -49,7 +49,7 @@ jobs:
         brew bundle
 
     - name: Setup Golang caches
-      uses: actions/cache@v4
+      uses: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684 # v4.2.3
       with:
         path: |
           ~/.cache/go-build
@@ -78,4 +78,4 @@ jobs:
         cd var
         for file in *; do
           gh release upload $RELEASE $file
-        done
+        done