fix: replace checksum prefix to 0x (docker-build) (#101)

Author: abbesBenayache

.github/workflows/docker-build.yml

@@ -238,7 +238,7 @@ jobs:
           # Extract SHA256 digest and format as 0X...
           INSPECT=$(docker image inspect "$OCI_IMAGE")
           DIGEST=$(echo "$INSPECT" | jq -r 'if .[0].RepoDigests[0] then .[0].RepoDigests[0] | split("@sha256:")[1] else .[0].Id | split(":")[1] end')
-          echo "checksum=0X${DIGEST}" >> "$GITHUB_OUTPUT"
+          echo "checksum=0x${DIGEST}" >> "$GITHUB_OUTPUT"
     
       - name: Cleanup files
         if: always()