Update the docIndex default for manual runs

[JimSuplizio]

This PR only updates the manual run conditions which were completely backwards. When running manually they wouldn't update main unless a variable was set and would always kick off the daily run which is only supposed to be kicked off during the scheduled run. The daily branch updates kick off a docs run against the daily branch which is created/updated when scheduled runs publish daily libraries. On the docs side, when the run against the daily branch completes, it nukes the branch and renames it to "daily/-[ci-succeeded|ci-failed"]. Unless we're specifically testing something related to kicking off the daily runs, it should only ever be run from the scheduled doc index runs. Multiple daily runs can cause issues on the docs with the way the success/failure branch is created.

I also moved the verify required metadata json members before running anything because if any of these are borked, any one of the steps running afterwards could fail.

With these changes:

• Scheduled runs will still update the main and daily branches and kick off the daily run.
• Manual runs will run update main unless Skip.MainUpdate is set to true
• Manual runs will not update the daily branch and kick off the daily run unless Force.DailyUpdate is set to true.

Testing the changes:
I will link pipeline runs once they're complete

• Manual docIndex run with no variables set. This will process/update main without touching the daily
• Manual docIndex run with Force.DailyUpdate set to true and Skip.MainUpdate set to true. Will process main and the daily branch and kick off the daily docs run.