Update pipeline Test functional by framework - multisteps

Author: yakov-g

.harness/test_functional_by_framework_multisteps.yaml

@@ -17,7 +17,7 @@ pipeline:
                 value: <+pipeline.variables.target_repo>
               - name: target_repo_source_branch
                 type: String
-                value: <+pipeline.variables.target_branch>
+                value: <+pipeline.variables.source_branch>
               - name: target_repo_target_branch
                 type: String
                 value: <+input>