[db] Backend setting improvements (#11500)

* Refactor database engine options

- Move to setting/db_backend.py
- Cleanup settings.py

* Fix documentation for postgres settings

* docs updates

* Add transaction_mode options for sqlite

* Update CHANGELOG with breaking changes

* Remove hard-coded database config

* Raise error on invalid backend

* Fix typos

* Fix broken redis link

* Limit to single worker thread for sqlite

* Update docs

* Add verbosity switch to dev.test task

* Add test timeout - kill hanging tests after 120s

* Set WAL mode for sqlite

* Use IMMEDIATE mode for background worker thread

* Use config to set WAL rather than custom hook

* Tweak pyproject settings

* Tweak code

* Increase timeouts

* Reset requirements to master

tasks.py

@@ -1350,19 +1350,21 @@ def test_translations(c):
         'translations': 'Compile translations before running tests',
         'keepdb': 'Keep the test database after running tests (default = False)',
         'pytest': 'Use pytest to run tests',
+        'verbosity': 'Verbosity level for test output (default = 1)',
     }
 )
 def test(
     c,
-    check=False,
-    disable_pty=False,
-    runtest='',
-    migrations=False,
-    report=False,
-    coverage=False,
-    translations=False,
-    keepdb=False,
-    pytest=False,
+    check: bool = False,
+    disable_pty: bool = False,
+    runtest: str = '',
+    migrations: bool = False,
+    report: bool = False,
+    coverage: bool = False,
+    translations: bool = False,
+    keepdb: bool = False,
+    pytest: bool = False,
+    verbosity: int = 1,
 ):
     """Run unit-tests for InvenTree codebase.
 
@@ -1410,6 +1412,8 @@ def test(
 
     cmd += ' --exclude-tag performance_test'
 
+    cmd += f' --verbosity {verbosity}'
+
     if coverage:
         # Run tests within coverage environment, and generate report
         run(c, f'coverage run {manage_py_path()} {cmd}')