Episode 2.3: changing YAML example text

https://github.com/carpentries-incubator/python-intermediate-development/blob/3035eaf7d63720b310eba097da9b7dffb7ee1309/episodes/23-continuous-integration-automated-testing.md?plain=1#L80-L82

I have done zero research on this but there might be African people, historically recorded or not, who climbed this mountain before Europeans. Probably too difficult to find a certain "first" person, so might be better to just use an example that doesn't have this sort of colonial bias?