ci: remove DockerHub logins

Author: jameslamb

.github/workflows/presto-build.yml

@@ -113,13 +113,6 @@ jobs:
           username: ${{ github.repository_owner }}
           password: ${{ github.token }}
 
-      - &login_dockerhub
-        name: Login to DockerHub
-        uses: docker/login-action@c94ce9fb468520275223c153574b00df6fe4bcc9  # v3.7.0
-        with:
-          username: ${{ secrets.GPUCIBOT_DOCKERHUB_USER }}
-          password: ${{ secrets.GPUCIBOT_DOCKERHUB_TOKEN }}
-
       - name: Stage presto-deps build context
         run: |
           cp -r presto/presto-native-execution presto-deps-context
@@ -169,7 +162,6 @@ jobs:
       - *setup_proxy_cache
       - *setup_buildx
       - *login_ghcr
-      - *login_dockerhub
 
       - name: Build Presto Java package
         env:
@@ -253,7 +245,6 @@ jobs:
       - *setup_proxy_cache
       - *setup_buildx
       - *login_ghcr
-      - *login_dockerhub
 
       - &setup_sccache
         name: Setup sccache

.github/workflows/velox-build.yml

@@ -87,13 +87,6 @@ jobs:
           username: ${{ github.repository_owner }}
           password: ${{ github.token }}
 
-      - &login_dockerhub
-        name: Login to DockerHub
-        uses: docker/login-action@c94ce9fb468520275223c153574b00df6fe4bcc9  # v3.7.0
-        with:
-          username: ${{ secrets.GPUCIBOT_DOCKERHUB_USER }}
-          password: ${{ secrets.GPUCIBOT_DOCKERHUB_TOKEN }}
-
       - name: Build and push Velox deps image
         id: push
         uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83  # v6.18.0
@@ -168,7 +161,6 @@ jobs:
       - *setup_proxy_cache
       - *setup_buildx
       - *login_ghcr
-      - *login_dockerhub
 
       - &setup_sccache
         name: Setup sccache