Install bc in configbaker image so conf/solr/update-fields.sh will run

[pdurbin]

What this PR does / why we need it:

People can't run update-fields.sh in configbaker without this fix

Which issue(s) this PR closes:

• Closes In container demo tutorial, can't update Solr fields after adding additional metadata block #11722

Special notes for your reviewer:

There are a few more details in the issue.

Suggestions on how to test this:

Try running this on develop:

curl http://localhost:8080/api/admin/index/solr/schema | docker run -i --rm -v ./docker-dev-volumes/solr/data:/var/solr gdcc/configbaker:unstable update-fields.sh /var/solr/data/collection1/conf/schema.xml

(To see the command in context: https://guides.dataverse.org/en/6.7.1/container/running/demo.html#additional-metadata-blocks )

Then build configbaker: https://guides.dataverse.org/en/6.7.1/container/configbaker-image.html#build-instructions

Then try running the command above again.

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

No.

Is there a release notes update needed for this change?:

Yes, included.

Additional documentation:

None.

[github-actions]

📦 Pushed preview images as

ghcr.io/gdcc/dataverse:11722-configbaker-bc-missing

ghcr.io/gdcc/configbaker:11722-configbaker-bc-missing

🚢 See on GHCR. Use by referencing with full name as printed above, mind the registry name.

[GPortas]

Works great

[ofahimIQSS]

very nice! merging