PSA: next driver roll will change environment variable names

See https://github.com/microsoft/playwright/pull/11661

To apply changes:
```
$ git grep -l PW_CLI_TARGET_LANG | xargs sed -i -e 's/PW_CLI_TARGET_LANG/PW_LANG_NAME/g
$ git grep -l PW_CLI_TARGET_LANG | xargs sed -i -e 's/PW_CLI_TARGET_LANG_VERSION/PW_LANG_NAME_VERSION/g
```