Lock file maintenance Python dependencies #1248

Job	Run time
Lint / Lint .github/workflows/	7s
Lint / tox run -e lint	18s
Integration test charm \| 3.1.8 / 3.1.8 \| amd64 \| Collect integration test groups	32s
Integration test charm \| 3.1.8 / bundle/test_bundle.py \| group 1	3m 12s
Integration test charm \| 3.1.8 / bundle/test_read_distribution.py \| group 1	3m 23s
Integration test charm \| 3.1.8 / bundle/test_tls_bundle.py \| group 1	9m 21s
Integration test charm \| 3.1.8 / relations/pgbouncer_provider/test_pgbouncer_provider.py \| group 1	7m 26s
Integration test charm \| 3.1.8 / relations/test_backend_database.py \| group 1	9m 36s
Integration test charm \| 3.1.8 / relations/test_db.py \| group 1	4m 8s
Integration test charm \| 3.1.8 / relations/test_db_admin.py \| group 1	3m 36s
Integration test charm \| 3.1.8 / (beta) Publish Allure report	0s
	41m 39s

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