chore: revert to docker/login-action v3

Author: deanq

.github/workflows/CI-e2e.yml

@@ -33,13 +33,13 @@ jobs:
           echo "git+https://github.com/runpod/runpod-python.git@$GIT_SHA" > mock-worker/builder/requirements.txt
 
       - name: Set up QEMU
-        uses: docker/setup-qemu-action@v4
+        uses: docker/setup-qemu-action@v3
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v4
+        uses: docker/setup-buildx-action@v3
 
       - name: Login to Docker Hub
-        uses: docker/login-action@v4
+        uses: docker/login-action@v3
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}