feat(database): add Open J Proxy

* Add Open J Proxy to the Database section

Agent-Logs-Url: https://github.com/rrobetti/awesome-java/sessions/7120ce66-b4b4-4287-a140-d868f18bf930

Co-authored-by: rrobetti <7221783+rrobetti@users.noreply.github.com>

* Update README to remove obsolete library entries

Removed entries for Spring Data JPA MongoDB Expressions, Trino, and QueryStream from the list of libraries.

* Remove redundant lines from README.md

* Add commercial.svg link to README

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Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: rrobetti <7221783+rrobetti@users.noreply.github.com>