fix: Pipeline bash (#355)

Co-authored-by: Sung Kim <sung.kim@indico.io>

Author: indicomachineuser

.harness/publish_python_sdk.yaml

@@ -243,7 +243,7 @@ pipeline:
                   spec:
                     connectorRef: account.harbor
                     image: harbor.devops.indico.io/dockerhub-proxy/alpine/git
-                    shell: Sh
+                    shell: Bash
                     command: |-
                       TARGET_BRANCH="<+codebase.branch>"
                       COMMIT_MESSAGE="<+codebase.commitMessage>"