Bump deps/build/addonfactory_test_matrix_splunk (#233)

Bumps [deps/build/addonfactory_test_matrix_splunk](https://github.com/splunk/addonfactory_test_matrix_splunk) from `a1fb974` to `f79fe8c`.
- [Release notes](https://github.com/splunk/addonfactory_test_matrix_splunk/releases)
- [Commits](splunk/addonfactory_test_matrix_splunk@a1fb974...f79fe8c)

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

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

Author: dependabot[bot]