Prefer PG 12.6 over PG 12.4
What does this Merge Request do and why?
Because GitLab.com will move to PG 12.x soon, and because developers will expect to make use of versions of PG 12.x that contain lots of improvements, we should pre-load PG 12.6 before making the switch to 12.x as the default.
Merge Request checklist
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This change is backward compatible. If not, please include steps to communicate to our users. -
Tests added for new functionality. If not, please raise Issue to follow-up. -
Documentation added/updated, if needed. -
gdk doctor
test added, if needed. -
Add the ~highlight
label if this MR should be included in theCHANGELOG.md
.