Adding indices on jobs table (#2161)

* Adding lineage indices.

* Adding another index.

* Bumping migration name.

Co-authored-by: phix <peter.hicks@astronomer.io>

Author: phixMe

api/src/main/resources/marquez/db/migration/V51__job_indices_for_lineage.sql

@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: Apache-2.0 */
+
+create index jobs_current_version_uuid_index
+    on jobs (current_version_uuid);
+
+create index jobs_symlink_target_uuid_index
+    on jobs (symlink_target_uuid);
+
+create index jobs_current_job_context_uuid_index
+    on jobs (current_job_context_uuid);