maybe fixed docsite rm command

.github/workflows/docsite.yml

@@ -52,7 +52,7 @@ jobs:
           git_branch=${GITHUB_REF#refs/heads/}
           git fetch
           git switch docsite
-          find . -mindepth 1 ! -regex '(^\.\/builtdocs\/.*)|(^\.\/\.git\/.*)' -delete
+          find . -mindepth 1 -regextype posix-egrep ! -regex '(^\.\/\.git.*)|(^\.\/builtdocs.*)' -delete
           mv -vf builtdocs/{.[!.],}* ./
           rmdir builtdocs
           git add .