ci: update scan steps to use drone-ssh Docker image

- Change docker image tag from repository name to drone-ssh for scan steps

Signed-off-by: appleboy <appleboy.tw@gmail.com>

Author: appleboy

.github/workflows/docker.yml

@@ -73,12 +73,12 @@ jobs:
           file: docker/Dockerfile
           push: false
           load: true
-          tags: ${{ github.repository }}:scan
+          tags: drone-ssh:scan
 
       - name: Run Trivy vulnerability scanner
         uses: aquasecurity/trivy-action@master
         with:
-          image-ref: "${{ github.repository }}:scan"
+          image-ref: "drone-ssh:scan"
           format: "sarif"
           output: "trivy-results.sarif"
           severity: "CRITICAL,HIGH"