Bump couchbase from 4.5.0 to 4.6.0 in /src (#139)

Bumps [couchbase](https://github.com/couchbase/couchbase-python-client) from 4.5.0 to 4.6.0.
- [Commits](couchbase/couchbase-python-client@4.5.0...4.6.0)

---
updated-dependencies:
- dependency-name: couchbase
  dependency-version: 4.6.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

src/requirements.txt

@@ -1,4 +1,4 @@
-couchbase==4.5.0
+couchbase==4.6.0
 flask_restx==1.3.0
 pytest==9.0.3
 python-dotenv==1.2.2