Merge branch 'coverage/increase' into 'dev'

.gitlab-ci.yml

dbrepo-search-service/.coveragerc

dbrepo-search-service/.gitignore

dbrepo-search-service/Pipfile

dbrepo-search-service/Pipfile.lock

dbrepo-search-service/app.py

dbrepo-search-service/init/clients/opensearch_client.py

dbrepo-search-service/test.sh

dbrepo-search-service/test/conftest.py

dbrepo-search-service/test/rsa/rs256.key

dbrepo-search-service/test/rsa/rsa256.pkey

dbrepo-search-service/test/test_app.py

dbrepo-search-service/test/test_jwt.py

dbrepo-search-service/test/test_keycloak_client.py

dbrepo-search-service/test/test_opensearch_client.py