fixup! .github: add release-winget.sh to open winget-pkgs PR

Before trying to remove the temporary directory, we should ensure that
we're not in it: On Windows, you cannot remove the current directory.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

Author: dscho

.github/release-winget.sh

@@ -70,8 +70,10 @@ version=$(printf '%s' "${TAG_NAME#v}" | sed 's/vfs\.//')
 echo "==> Version:   $version"
 
 workdir=$(mktemp -d)
+origdir="$(pwd)"
 success=0
 cleanup () {
+	cd "$origdir"
 	if [ "$success" = 1 ]; then
 		rm -rf "$workdir"
 	else