ShareDB CI Breakage

The ShareDB CI pipeline seems impacted by recent changes here, as evidenced by this PR:

https://github.com/share/sharedb/pull/599

The output there reads:

Run scripts/test-sharedb-mongo.sh
Cloning into 'sharedb-mongo'...
npm ERR! code ERESOLVE
npm ERR! ERESOLVE unable to resolve dependency tree
npm ERR! 
npm ERR! While resolving: sharedb-mongo@3.0.1
npm ERR! Found: sharedb@3.2.[4](https://github.com/share/sharedb/actions/runs/4323100701/jobs/7546300118#step:9:5)
npm ERR! node_modules/sharedb
npm ERR!   sharedb@"file:../sharedb" from the root project
npm ERR! 
npm ERR! Could not resolve dependency:
npm ERR! peer sharedb@"^1.0.0-beta || ^2.0.0" from sharedb-mingo-memory@1.2.0
npm ERR! node_modules/sharedb-mingo-memory
npm ERR!   dev sharedb-mingo-memory@"^1.1.1" from the root project
npm ERR! 
npm ERR! Fix the upstream dependency conflict, or retry
npm ERR! this command with --force, or --legacy-peer-deps
npm ERR! to accept an incorrect (and potentially broken) dependency resolution.
npm ERR! 
npm ERR! See /home/runner/.npm/eresolve-report.txt for a full report.
npm ERR! A complete log of this run can be found in:
npm ERR!     /home/runner/.npm/_logs/2023-03-03T11_47_[5](https://github.com/share/sharedb/actions/runs/4323100701/jobs/7546300118#step:9:6)8_0[7](https://github.com/share/sharedb/actions/runs/4323100701/jobs/7546300118#step:9:8)2Z-debug-0.log

It looks like to do with

• the ShareDB major version bump (to v3)
• the peer dependencies list in sharedb-mingo-memory https://github.com/share/sharedb-mingo-memory/blob/master/package.json#L21 being updated
• the fact that this repo sharedb-mongo still has a dependency on the older release of sharedb-mingo-memory, which does not yet include v3 in the list of acceptable ShareDB versions

Proposed fix

I would guess that upgrading the sharedb-mingo-memory version here would solve the issue.

Also, for the sake of stability, it may be worth having ShareDB's scripts/test-sharedb-mongo.sh use a specific commit of this repository, as currently the CI of ShareDB is vulnerable to changes in this repo because that script always pulls the latest from here.

Cheers!

Inspect the sharedb-mongo dependency on sharedb-mingo-memory and the peer dependency entry in sharedb-mingo-memory/package.json. Run scripts/test-sharedb-mongo.sh and review PR 599 to confirm the dependency-resolution failure. Done means the ShareDB CI script completes successfully with compatible dependency versions; assess separately whether pinning the repository commit is in scope.