scout: use --password-stdin in docker login examples for integrations

Signed-off-by: David Karlsson <[email protected]>

Author: dvdksn

content/manuals/scout/integrations/ci/azure.md

@@ -55,7 +55,7 @@ stages:
                 # Install the Docker Scout CLI
                 curl -sSfL https://raw.githubusercontent.com/docker/scout-cli/main/install.sh | sh -s --
                 # Login to Docker Hub required for Docker Scout CLI
-                docker login -u $(DOCKER_HUB_USER) -p $(DOCKER_HUB_PAT)
+                echo $(DOCKER_HUB_PAT) | docker login -u $(DOCKER_HUB_USER) --password-stdin
                 # Get a CVE report for the built image and fail the pipeline when critical or high CVEs are detected
                 docker scout cves $(image):$(tag) --exit-code --only-severity critical,high
 ```

content/manuals/scout/integrations/ci/gitlab.md

@@ -34,7 +34,7 @@ docker-build:
       apk del curl 
       rm -rf /var/cache/apk/*
     # Login to Docker Hub required for Docker Scout CLI
-    - docker login -u "$DOCKER_HUB_USER" -p "$DOCKER_HUB_PAT"
+    - echo "$DOCKER_HUB_PAT" | docker login -u "$DOCKER_HUB_USER" --password-stdin
 ```
 
 This sets up the workflow to build Docker images with Docker-in-Docker mode,