* use cluster mode, in all the places

* TestScrapeRedisHostSentinelPath

* TestClusterStreamMetricsExtraction

Previously, the error message for RedisExporter initialization was hardcoded and didn't include the actual error details. This commit modifies the error response to include the dynamic error value using fmt.Sprintf(), making debugging easier.

Signed-off-by: weidongkl <weidong@uniontech.com>

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 5.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v4...v5

)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

* add main_test.go

* use golang:1.25

* TestExtractInfoMetrics

* TestKeyspaceStringParser