semantic token not refreshing on file watcher notification

[heejaechang]

pylance is not sending refresh requests on file change notification from file watcher

see this (https://github.com/microsoft/pyrx/blob/8abca756d37995387d88853c21913a1f09cb6695/packages/pylance-internal/src/server/asyncServer.ts#L705C9-L711C10)

            this.connection.sendRequest(SemanticTokensRefreshRequest.method).ignoreErrors();
            this.connection.sendRequest(InlayHintRefreshRequest.method).ignoreErrors();

one can repro it using
https://github.com/microsoft/pylance-release/blob/0945dea30d3276dcf945543aa4f5f75c84aa4136/testing/single/src/fileWatcher.py#L4C1-L6C24

[rchiodo]

Test of link:

https://github.com/microsoft/pyrx/blob/8abca756d37995387d88853c21913a1f09cb6695/packages/pylance-internal/src/server/asyncServer.ts#L259

[bschnurr]

https://github.com/microsoft/pyrx/pull/4471