Upgrade rdoc to version 6.2.0

[depfu[bot]]

Here is everything you need to know about this upgrade. Please take a good look at what changed and the test results before merging this pull request.

What changed?

✳️ rdoc (~> 5.1 → ~> 6.2) · Repo · Changelog

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[coveralls]

Coverage remained the same at 49.793% when pulling b2811916edcc038256f64c1025d991c7c666ca9e on depfu/update/rdoc-6.2.0 into 9a129e3e1105594600e47a3a9e1366c7a20a833a on master.

[depfu[bot]]

Closed in favor of #85.

[depfu[bot]]

Closed in favor of #85.