Introduce Python v3.11 support

• Remove runners tags
• Introduce tests:3.11 job
• Based Silkaj container on v3.11 container
• Move coverage from tests:3.9:cov to tests:3.11:cov job
• Set default PYTHON_VERSION to 3.11
• Bump pre-commit hooks versions
• pyproject.toml: Create test group
• Bump pytest-cov to v4

Close #442 (closed).

silkaj/wot/revocation.py

@@ -101,8 +101,8 @@ def revoke_now(ctx: click.Context) -> None:
 
 @click.command(
     "verify",
-    help="Verifies that a revocation document is correctly formatted and matches an existing identity.\n\
-Optionnaly takes the document filename.",
+    help="Verifies that a revocation document is correctly formatted and matches an \
+existing identity.\nOptionnaly takes the document filename.",
 )
 @click.argument(
     "file",