Reflect the URL change for `maven-badges` across all repositories

The URL for `maven-badges` has been changed from `https://maven-badges.herokuapp.com` to `https://maven-badges.sml.io`.
https://github.com/softwaremill/maven-badges/blob/698cf84d1dded2f60df5c658931dae7f9327d592/readme.md#a-new-dns-address

While `kotlin-module` has completed the migration, I believe all branches in other repositories starting from `2.21` also need to be migrated.
https://github.com/FasterXML/jackson-module-kotlin/pull/1122

Additionally, for branches on `3.0` and later, it appears some badges may require migration from `maven-central/com.fasterxml.jackson.xxx` to `maven-central/tools.jackson.xxx`.

If it's just a simple description fix, I can handle it starting next week.
However, since fixes are needed on the `Jackson 2` branch, and further fixes might be required after syncing those changes to the `Jackson 3` branch, it would be more efficient if we could get cooperation from the maintainers of each repository.

**EDIT**:

Fixed so far:

* `jackson-core`
* `jackson-databind`
* `jackson-modules-base`
* `jackson-module-kotlin` ?
* `jackson-module-scala` ?