[CI] Bump docker/login-action from 3 to 4 (#7299)

Bumps [docker/login-action](https://github.com/docker/login-action) from3 to 4.

- vLLM version: v0.17.0
- vLLM main:
4034c3d32e

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/_schedule_image_build.yaml

@@ -63,7 +63,7 @@ jobs:
 
     - name: Publish - Login to Quay Container Registry
       if: ${{ inputs.should_push }}
-      uses: docker/login-action@v3
+      uses: docker/login-action@v4
       with:
         registry: quay.io
         username: ${{ inputs.quay_username }}
@@ -161,7 +161,7 @@ jobs:
             latest=false
 
       - name: Login to Quay
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           registry: quay.io
           username: ${{ inputs.quay_username }}

.github/workflows/schedule_lint_image_build.yaml

@@ -54,7 +54,7 @@ jobs:
 
     - name: Publish - Login to Quay Container Registry
       if: ${{ github.repository_owner == 'vllm-project' }}
-      uses: docker/login-action@v3
+      uses: docker/login-action@v4
       with:
         registry: quay.io
         username: ${{ vars.QUAY_CI_USERNAME }}