biopragmatics/pyobo: v0.12.16

What's Changed Pin sphinx by @cthoyt in https://github.com/biopragmatics/pyobo/pull/472 Add explicit handling of NaNs when loading semantic mappings by @cthoyt in https://github.com/biopragmatics/pyobo/pull/473 Upstream ROR implementation by @cthoyt in https://github.com/biopragmatics/pyobo/pull/471 Fix CLI typing by @cthoyt in https://github.com/biopragmatics/pyobo/pull/475 Externalize ROBOT by @cthoyt in https://github.com/biopragmatics/pyobo/pull/474 Add OBO lexical review tool by @cthoyt in https://github.com/biopragmatics/pyobo/pull/477 Full Changelog: https://github.com/biopragmatics/pyobo/compare/v0.12.15...v0.12.16