fix(workflows): open branch from dev not from main

[Wabri]

I noticed that I forgot to merge the pr #861 before remove my fork, sorry!

The changes worked as I already mention here: https://github.com/sap-linuxlab/community.sap_install/pull/861#issuecomment-2346210133

[marcelmamula]

@berndfinger This unmerged PR might be fix for current depedency bot merge problems https://github.com/sap-linuxlab/community.sap_install/commit/b28bb8706a0b14328ade6616942881c76149306c

[Wabri]

I'm going to close the pr and remove the fork due to inactivity!