Temorary allow merge commits

[laeubi]

Needs approval form PL @merks @akurtakov to merge

• Merge terminal control eclipse.platform#1851

[mbarbero]

Since otterdog is still down due to infrastructure outage, I've merged and applied the following changes manually:

  ~ repository[name="eclipse.platform"] {
    ~ allow_merge_commit = false -> true
  ~ }