Merge pull request #4119 from DataDog/vpellan/ci-docker-login

Author: vpellan

.github/workflows/system-tests.yml

@@ -36,6 +36,11 @@ jobs:
           repository: 'DataDog/system-tests'
           ref: ${{ env.SYSTEM_TESTS_REF }}
           persist-credentials: false
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
       - name: Pull released image
         run: |
           if docker pull ${{ env.REPO }}/system-tests/${{ matrix.image.name }}:latest; then
@@ -131,6 +136,11 @@ jobs:
           echo "FORCED_TESTS_LIST<<EOF" >> $GITHUB_OUTPUT
           echo "$(cat binaries/dd-trace-rb/.github/forced-tests-list.json)" >> $GITHUB_OUTPUT
           echo "EOF" >> $GITHUB_OUTPUT
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
       - name: Pull released image
         run: |
           if docker pull ${{ env.REPO }}/system-tests/${{ matrix.library.name }}/${{ matrix.image }}-${{ matrix.app }}:latest; then
@@ -285,6 +295,11 @@ jobs:
           repository: 'DataDog/system-tests'
           ref: ${{ env.SYSTEM_TESTS_REF }}
           persist-credentials: false
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
       - name: Pull runner image
         run: |
           docker pull ${{ env.REPO }}/system-tests/runner:gha${{ github.run_id }}-g${{ github.sha }}