Debug missing stable27 updates

[nickvergessen]

No description provided.

[nickvergessen]

Adding this debug output fixed stable27 not being updated since a month:
3dddb78

But even now it claimed that only build.sh was modified:
https://github.com/nextcloud-deps/ocp/actions/runs/6404034874/job/17383766850#step:4:45

but then the actual git commit listed the added files successfully:
https://github.com/nextcloud-deps/ocp/actions/runs/6404034874/job/17383766850#step:4:53

The linked file should be there since 7th September when this PR was merged:
nextcloud/server#40286

[nickvergessen]

It also did not work for the tags:
https://github.com/nextcloud-deps/ocp/commits/v27.1.1/OCP
the tags are missing the respective file as well.

[nickvergessen]

Uff, so the problem is git diff does not list untracked files and no file was modified, only new files added.
Can be fixed by always git add OCP and then using git diff --cached, so will go for that.