Audit build outcomes/kira pilot (#5143)

* auditing failed builds

* logging workspace build successes

* remove duplicate workspace build entry

* fixed workspacebuilds_test

* PR feedback

* lint and migrations

* fix nil auditors

* workspace_build test

* fixed workspaces_teest

Co-authored-by: Colin Adler <colin1adler@gmail.com>

coderd/database/migrations/000082_add_audit_log_nullable_fields.down.sql

@@ -0,0 +1,2 @@
+ALTER TABLE audit_logs ALTER COLUMN ip SET NOT NULL;
+ALTER TABLE audit_logs ALTER COLUMN user_agent SET NOT NULL;

coderd/database/migrations/000082_add_audit_log_nullable_fields.up.sql

@@ -0,0 +1,2 @@
+ALTER TABLE audit_logs ALTER COLUMN ip DROP NOT NULL;
+ALTER TABLE audit_logs ALTER COLUMN user_agent DROP NOT NULL;