fix: [DevOps] Orchestration spec update to new release tag

Author: CharlesDuboisSAP

.github/workflows/weekly-spec-update.yaml

@@ -41,7 +41,7 @@ jobs:
         run: |
           BRANCH="main"
           if [ "${{ matrix.file }}" = "orchestration" ]; then
-            BRANCH="rel/$ORCH_VERSION"
+            BRANCH="rel-$ORCH_VERSION"
           fi
           echo "Using branch: $BRANCH"