[1.7.x] Fixed a formatting issue in the 1.7 release notes.

Backport of 47ff469 from master.
[1.7.x] Improved GIS migration test cleanup; refs #23504.

Backport of 8facb02faf from master
[1.7.x] Skipped some broken tests on Oracle GIS; refs #23504.

Backport of 7fce7f51ef from master
[1.7.x] Removed unnecessary order_by() from a GIS test that crashed Oracle.

Oracle cannot order_by() a TextField; refs #23504.

Backport of 7fc13178d6 from master
[1.7.x] Fixed an inspectapp test on Oracle GIS.

This is fixed more elegantly with a feature flag on master in 33e817a6d8.
[1.7.x] Skipped an unsupported test on Oracle GIS.

This is fixed more elegantly on master with a feature flag in 6c1a0581ab.
[1.7.x] Fixed some flake8 errors.

Backport of 9d30412a5a from master
[1.7.x] Made a GIS test work on Oracle.

Thanks Josh Smeaton and Claude Paroz for advice.

Backport of 7add30df01 from master
[1.7.x] Skipped a broken GIS test on Oracle; refs #23504.

Backport of 828edc5ba9 from master