patch(DPE-9772): CI Green

[Gu1nness]

🏷️ Type of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update
• Tooling and CI
• Dependencies upgrade or change
• Chores / refactoring

📝 Description

• Poetry dynamic versioning check: We broke releasing once by pushing an invalid pyproject.toml file, let's not reproduce that.
• Race condition (exposed by release testing):
  • TLS + Mongos => we were not checking properly if TLS and Mongos had the same CA and if mongos had received certificates. Mongos would start without internal certificate, preventing from building the cluster.
  • We were potentially running some relation-changed events too early.
• Other bugs
  • Generating the config server URI for the local mongos running along with config-server would fail if there are more than 1 mongos integrated. This is fixed by remodelling the way we build the URI, ensuring we don't unnecessarily access the mongos_cluster_relation relation object.

🧪 Manual testing steps

1. Deploy config server + 1 shard + mongos.
2. Integrate config-server and shard.
3. Integrate config-server to tls and shard to tls (at least peer-certs).
4. Integrate mongos to config server and tls integration to mongos at the same time.
5. This should end up quickly.

🔬 Automated testing steps

Added a test to Mongos LDAP suite (reverse scenario).
TLS race condition test should not be flaky anymore.
Updated UT.

✅ Checklist

• My code follows the code style of this project.
• I have added or updated any relevant documentation.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.