fix Windows build - Githubissues

Windows build was broken.

Fix it.

[x] If this PR adds a new feature, or fixes a bug in a previously released version, it includes an entry in NEWS.md
[x] If this PR adds or changes UI, the updated UI meets accessibility standards
[x] A reviewer is assigned to this PR (if unsure who to assign, check Area Owners list)
[x] This PR passes all local unit tests

rstudio / rstudio