sqlite3_test: Correct sqlite3 dependency

Author: simolus3

sqlite3_test/pubspec.yaml

@@ -15,7 +15,7 @@ environment:
 dependencies:
   clock: ^1.1.2
   file: ^7.0.1
-  sqlite3: ^3.0.0-0
+  sqlite3: ^3.0.0
 
 dev_dependencies:
   fake_async: ^1.3.2