chore: Fix release_commits setting (#59)

Author: scouten

release-plz.toml

@@ -37,4 +37,4 @@ dependencies_update = true
 features_always_increment_minor = false
 pr_labels = ["release"]
 release_always = false
-release_commits = "^(feat|fix|docs|perf|refactor|revert|test|update)[(:]"
+release_commits = "^(feat|fix|docs|perf|refactor|revert|test|update)!?[(:]"