Fix git pkg build sudo regression

[Lukas-Heiligenbrunner]

Fix regression caused by #214

When adding a custom Git repo subdirectory to build the directory is chmodded before build which requires sudo rights:

Pulling image: ghcr.io/lukas-heiligenbrunner/aurcache-builder:latestchmod: changing permissions of '/tmp': Operation not permitted
chmod: changing permissions of '/tmp/flutter.sh': Operation not permitted
chmod: changing permissions of '/tmp/no-runtime-download.patch': Operation not permitted
chmod: changing permissions of '/tmp/update-artifact-versions.sh': Operation not permitted
chmod: changing permissions of '/tmp/doctor.patch': Operation not permitted
chmod: changing permissions of '/tmp/gradle-user-home.patch': Operation not permitted
chmod: changing permissions of '/tmp/PKGBUILD': Operation not permitted
chmod: changing permissions of '/tmp/.gitignore': Operation not permitted
chmod: changing permissions of '/tmp/opt-in-analytics.patch': Operation not permitted
chmod: changing permissions of '/tmp/.SRCINFO': Operation not permitted
chmod: changing permissions of '/tmp/version.patch': Operation not permitted
chmod: changing permissions of '/tmp/system-dart.patch': Operation not permitted
chmod: changing permissions of '/tmp/flutter-common.install': Operation not permitted
chmod: changing permissions of '/tmp/no-lock.patch': Operation not permitted
failed to build packageDocker container wait error: 

this readds the sudo before the chmod which was deleted in #214

[Lukas-Heiligenbrunner]

@gyscos with this change it seems to work fine again. Was there any other intention in this change i am missing?

[gyscos]

Oh sorry I didn't realize I changed that. I did not actually test git repos yet, my bad...

[Lukas-Heiligenbrunner]

Ok, i see. No problem!