community/drone: upgrade to 2.12.0

v2.12.0 (2022-05-13)

Full Changelog

Implemented enhancements:

• bump SCM version to v1.21.1 #3204 (d1wilko)
• bump ui version #3202 (d1wilko)

Fixed bugs:

• (fix) update drone ui to 2.8.2 #3211 (tphoney)
• (dron-267) correctly set parent for promotion retry #3210 (tphoney)

Merged pull requests:

• fixing URL #3208 (dnielsen)
• update community information with updated links #3199 (mrsantons)