Add a check that the version number matches the current year #20466
Description
Should update https://github.com/microsoft/vscode-python/blob/main/build/update_ext_version.py with that check.
Discovered while trying to solve #20456 .
{{ message }}
Should update https://github.com/microsoft/vscode-python/blob/main/build/update_ext_version.py with that check.
Discovered while trying to solve #20456 .