fix(deps): update module github.com/confluentinc/confluent-kafka-go/v2 to v2.8.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
github.com/confluentinc/confluent-kafka-go/v2	v2.6.1 -> v2.8.0

---

Release Notes

confluentinc/confluent-kafka-go (github.com/confluentinc/confluent-kafka-go/v2)

v2.8.0

This is a feature release:

confluent-kafka-go is based on librdkafka v2.8.0, see the
librdkafka v2.8.0 release notes
for a complete list of changes, enhancements, fixes and upgrade considerations.

There was no v2.7.0 release.

Enhancements

• Add retry logic to RestService for Schema Registry (#​1337)
• Add ability to override disable flag and actions on a rule (#​1356)
• Add AWS AssumeRole support to AWS KMS (#​1359)
• Add support for comma-separated URLs (#​1364)

Fixes

• Add deleted query param when looking up schema under subject (#​1340)
• For Protobuf, copy the result into the target if necessary (#​1347)
• Don't register maps as native types in CEL rules (#​1348)
• Lookup local secret from env if needed (#​1349)
• Ensure different key ids use different client instances (#​1352)
• Fix handling of nested maps for Avro and JSON Schema (#​1355)
• Ensure algorithm query param is passed for CSFLE (#​1373)

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.56%. Comparing base (db077a8) to head (b48123f).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3604      +/-   ##
==========================================
+ Coverage   79.27%   79.56%   +0.28%     
==========================================
  Files          88       88              
  Lines        3503     3503              
==========================================
+ Hits         2777     2787      +10     
+ Misses        651      643       -8     
+ Partials       75       73       -2     

Flag	Coverage Δ
Linux	79.27% <ø> (ø)
Windows	75.31% <ø> (?)
macOS	75.30% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.