Change to `~/.config/codeql/config` not reflected in workspace until restart

[aeisenberg]

First noticed https://github.com/github/vscode-codeql/issues/1124#issuecomment-1039003407

To reproduce:

1. Create a .config/codeql/config file
2. add an entry like resolve ram --heap-ram 100
3. Start the vscode extension
4. Notice that it is not possible to run any queries (heap ram is too low) Also notice a warning in the extension log console: resolve ram> Warning: It is not recommended to specify --heap-ram without also giving --ram.
5. Remove the entry from the config file
6. Restart server

BUG: The warning should no longer be printed and queries should be able to run

Restart vscode and the warning goes away and queries can be run.