feat: add mongo cli tools, use mongo:latest, fixes #29

[MurzNN]

The Issue

• Fixes Add mongodump cli tool to the web container #29

How This PR Solves The Issue

• Adds mongo cli tools
• Switches from mongo:5-focal to mongo:latest

Manual Testing Instructions

ddev add-on get https://github.com/ddev/ddev-mongo/tarball/refs/pull/30/head
ddev restart

Automated Testing Overview

Release/Deployment Notes

[stasadev]

Thanks!

---

It looks like healthcheck doesn't work in v1.24.10 https://github.com/ddev/ddev-mongo/actions/runs/21434759196/job/61723111837?pr=30 because there's no mongo command available

ddev-mongo/docker-compose.mongo.yaml

Lines 30 to 32 in 9ba6736

	healthcheck:
	test: ["CMD-SHELL", "mongo --eval 'db.runCommand(\"ping\").ok' localhost:27017/test --quiet"]
	timeout: 60s

And I would it to support the existing config for mongo:5-focal, healthcheck can be improved to work differently depending on what's available.

[stasadev]

Looks good to me and works with both mongo:latest and mongo:5-focal.

Thank you!