chore(deps): bump deps/build/addonfactory_test_matrix_splunk

Bumps [deps/build/addonfactory_test_matrix_splunk](https://github.com/splunk/addonfactory_test_matrix_splunk) from `2b4e9c4` to `9861df8`.
- [Release notes](https://github.com/splunk/addonfactory_test_matrix_splunk/releases)
- [Commits](splunk/addonfactory_test_matrix_splunk@2b4e9c4...9861df8)

---
updated-dependencies:
- dependency-name: deps/build/addonfactory_test_matrix_splunk
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]