Dependency updates

What's Changed

• Bump cob_index from v0.8.7 to v0.8.8 by @dependabot in #105
• Bump lc_solr_sortable from 50a959b to e3d1513 by @dependabot in #107
• DEVO-541 Update machine image by @sensei100 in #108
• Bump nokogiri from 1.13.4 to 1.13.6 by @dependabot in #109
• Bump rsolr from 2.4.0 to 2.5.0 by @dependabot in #94
• Bump lc_solr_sortable from e3d1513 to ce9387f by @dependabot in #110
• Bump lc_solr_sortable from ce9387f to 5b8b4f6 by @dependabot in #111
• Bump lc_solr_sortable from 5b8b4f6 to 39eb998 by @dependabot in #113

Full Changelog: 5.5.5...5.5.6