Adding NetBSD and OpenBSD to Postgres CI

Applying: ci: Remove ulimit -p for netbsd/openbsd
Using index info to reconstruct a base tree...
A	.cirrus.tasks.yml
Falling back to patching base and 3-way merge...
CONFLICT (modify/delete): .cirrus.tasks.yml deleted in HEAD and modified in ci: Remove ulimit -p for netbsd/openbsd. Version ci: Remove ulimit -p for netbsd/openbsd of .cirrus.tasks.yml left in tree.
Patch failed at 0001 ci: Remove ulimit -p for netbsd/openbsd

error: Failed to merge in the changes.
hint: Use 'git am --show-current-patch=diff' to see the failed patch
hint: When you have resolved this problem, run "git am --continue".
hint: If you prefer to skip this patch, run "git am --skip" instead.
hint: To restore the original branch and stop patching, run "git am --abort".
hint: Disable this message with "git config advice.mergeConflict false"