Fix clearing bucket parameters [main] (#246)

* Fix deleteMany for bucket_parameters to use an index.

* Add changeset.

Author: rkistner

.changeset/gentle-coins-lie.md

@@ -0,0 +1,7 @@
+---
+'@powersync/service-module-mongodb-storage': patch
+'@powersync/service-core': patch
+'@powersync/service-image': patch
+---
+
+Fix slow clearing of bucket_parameters collection.

modules/module-mongodb-storage/src/storage/implementation/MongoSyncBucketStorage.ts

@@ -571,7 +571,7 @@ export class MongoSyncBucketStorage
     );
     await this.db.bucket_parameters.deleteMany(
       {
-        key: idPrefixFilter<SourceKey>({ g: this.group_id }, ['t', 'k'])
+        'key.g': this.group_id
       },
       { maxTimeMS: lib_mongo.db.MONGO_CLEAR_OPERATION_TIMEOUT_MS }
     );