Rename ToolsDB data source

The current database name is wrong, the real database name is specified
in the connection URL and is "information_schema".

As discussed in the Phab task, it makes sense to call this data source
simply "ToolsDB" and let users select their desired database in their
SQL queries.

Bug: T367393

ansible/templates/values.yaml.j2

@@ -114,7 +114,7 @@ extraConfigs:
       password: {{ replicaPass }}
       sqlalchemy_uri: mysql+mysqldb://[email protected]:3306/information_schema?ssl=1
       allow_run_async: true
-    - database_name: s55986__automod_metrics_p
+    - database_name: ToolsDB
       password: {{ toolsdbPass }}
       sqlalchemy_uri: mysql+mysqldb://[email protected]:3306/information_schema?ssl=1
       allow_run_async: true