Add subdirs in CompatHelper (#863)

* Add target subdirs

* Add further subdir

Co-authored-by: Mosè Giordano <[email protected]>

---------

Co-authored-by: Mosè Giordano <[email protected]>

Author: luraess

.github/workflows/CompatHelper.yml

@@ -16,4 +16,4 @@ jobs:
       - name: CompatHelper.main()
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: julia -e 'using CompatHelper; CompatHelper.main()'
+        run: julia -e 'using CompatHelper; CompatHelper.main(; subdirs=["", "test", "docs"])'