ci: Pin all gh actions to commit SHAs (#66)

Author: estebany-qd

.github/workflows/label-enforcer.yaml

@@ -11,6 +11,6 @@ jobs:
       pull-requests: write # for TimonVS/pr-labeler-action to add labels in PR
     runs-on: ubuntu-latest
     steps:
-    - uses: TimonVS/pr-labeler-action@v5
+    - uses: TimonVS/pr-labeler-action@f9c084306ce8b3f488a8f3ee1ccedc6da131d1af # v5.0.0
       with:
         repo-token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/pr-workflow.yaml

@@ -14,11 +14,11 @@ jobs:
     timeout-minutes: 10 # Sets a timeout of 10 minutes for this job (default is 1 minute)
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           persist-credentials: false
 
-      - uses: actions/setup-go@v6
+      - uses: actions/setup-go@4b73464bb391d4059bd26b0524d20df3927bd417 # v6.3.0
         with:
           go-version: "^1.25"
           cache: false
@@ -28,7 +28,7 @@ jobs:
           files=$(gofmt -l .) && echo $files && [ -z "$files" ]
 
       - name: Golang CI Lint
-        uses: golangci/golangci-lint-action@v9
+        uses: golangci/golangci-lint-action@1e7e51e771db61008b38414a730f564565cf7c20 # v9.2.0
         with:
           version: v2.7.2
 
@@ -37,11 +37,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           persist-credentials: false
 
-      - uses: actions/setup-go@v6
+      - uses: actions/setup-go@4b73464bb391d4059bd26b0524d20df3927bd417 # v6.3.0
         with:
           go-version: "^1.25"