Fix dependency lint issue.

Author: rkistner

packages/powersync/pubspec.yaml

@@ -33,7 +33,6 @@ dev_dependencies:
   test: ^1.25.0
   test_api: ^0.7.0
   path_provider: ^2.0.13
-  sqlite3: "^2.4.5"
   shelf: ^1.4.1
   shelf_router: ^1.1.4
   shelf_static: ^1.1.2