Automate Solr Schema updates

[poikilotherm]

What this PR does / why we need it:

Automate the tedious task of updating the Solr Core when metadata blocks are changing in the DV application.

Which issue(s) this PR closes:

• Closes #11959

Special notes for your reviewer: None

Suggestions on how to test this: The easiest way is to uncomment the sidecar in the compose file, start an instance and load some metadata block via API. You can verify the updated schema via the Solr Web UI.

Does this PR introduce a user interface change? If mockups are available, please link/include them here: Nope

Is there a release notes update needed for this change?: Let me know if you'd like one

Additional documentation: None