Use DBConnectionURI directly

[hackerwins]

What this PR does / why we need it:

This commit changes the yorkie-cluster chart to allow direct input of the DBConnectionURI.

Users can set options such as authmechanism in the MongoDB Connection URI. However, the current chart separates port and URI, making it impossible to configure settings. This commit enables users to directly set DBConnectionURI, allowing them to specify options when connecting to MongoDB.

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

Additional documentation:

Checklist:

• [x] Added relevant tests or not required
• [x] Didn't break anything

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 50.95%. Comparing base (13315ac) to head (d1f981c).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #833 +/- ## ======================================= Coverage 50.95% 50.95% ======================================= Files 70 70 Lines 10226 10226 ======================================= Hits 5211 5211 Misses 4487 4487 Partials 528 528 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.