Updates fcrepo4 image in compose file, etc.
- Uses newer Rails base image with unbuild flow (not s2i)
- Uses updated fcrepo4 image to support log level env var
- Sets FCREPO_LOG_LEVEL in compose file
- Sets SOLR_LOG_LEVEL in compose file
- Skip release and deploy CI jobs on dependabot branches
Edited by David Chandek-Stark