fix: pin GitHub Actions to SHA for supply chain security

Co-authored-by: Cursor Agent <cursoragent@cursor.com>

Author: riccardosarro

.github/workflows/docker-hub.yml

@@ -6,10 +6,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@ee0669bd1cc54295c223e0bb666b733df41de1c5 # v2
 
       - name: Build and push Docker images
-        uses: docker/build-push-action@v1.1.0
+        uses: docker/build-push-action@92e71463491f2d026a477188b8ad3a0fdd9d672c # v1.1.0
         with:
           username: ${{ secrets.DOCKER_HUB_USERNAME }}
           password: ${{ secrets.DOCKER_HUB_PASSWORD }}

.github/workflows/go.yml

@@ -10,13 +10,13 @@ jobs:
         goversion: ["1.25.7"]
     steps:
       - name: Set up Go ${{matrix.goversion}} on ${{matrix.os}}
-        uses: actions/setup-go@v6
+        uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6
         with:
           go-version: ${{matrix.goversion}}
         id: go
 
       - name: Check out code into the Go module directory
-        uses: actions/checkout@v6
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6
 
       - name: gofmt
         run: |