Enable flake8-bugbear, but disable most checks. (#9499)

* Adds B00 to ignored checks.
* Fixes remaining issues.

1 files changed, 3 insertions, 1 deletions

diff --git a/synapse/config/repository.py b/synapse/config/repository.py

index 69d9de5a43..061c4ec83f 100644
--- a/synapse/config/repository.py
+++ b/synapse/config/repository.py
@@ -176,7 +176,9 @@ class ContentRepositoryConfig(Config):
                 check_requirements("url_preview")
 
             except DependencyException as e:
-                raise ConfigError(e.message)
+                raise ConfigError(
+                    e.message  # noqa: B306, DependencyException.message is a property
+                )
 
             if "url_preview_ip_range_blacklist" not in config:
                 raise ConfigError(