chore: remove unrelated gateway workflow pinning from experiments PR

Author: LiorMazig

.github/workflows/check-wix-proxy.yml

@@ -17,13 +17,13 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+      - uses: actions/checkout@v4
 
       - name: Wix gateway proxy (mandatory)
         uses: ./.github/actions/wix-gateway-proxy
 
       - name: Set up Python
-        uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6
+        uses: actions/setup-python@v6
         with:
           python-version: "3.12"