Bump ex_doc from 0.20.0 to 0.20.1

[dependabot-preview[bot]]

Bumps ex_doc from 0.20.0 to 0.20.1.

Changelog

*Sourced from [ex_doc's changelog](https://github.com/elixir-lang/ex_doc/blob/master/CHANGELOG.md).* > ## v0.20.1 > > * Bug fixes > * Hide the spinner when no term is searched > * Use `?` for the shortcut hint text > * Improve style of the version dropdown

Commits

- [`654a0c6`](https://github.com/elixir-lang/ex_doc/commit/654a0c694e0a2b22873351518e5bf55ba5cad709) Release v0.20.1 - [`027300d`](https://github.com/elixir-lang/ex_doc/commit/027300d85048836c8d783608d7d4e8ba3d616b80) Style fixes to version dropdown - [`27ad5b6`](https://github.com/elixir-lang/ex_doc/commit/27ad5b60fc127d77eb6152a895236d8c89cae441) Use ? for keyboard shortcut hint - [`8bddac1`](https://github.com/elixir-lang/ex_doc/commit/8bddac1bc284868cbd01ba3caa6603e19d2c4929) Do not show spinner on empty search, closes [#990](https://github-redirect.dependabot.com/elixir-lang/ex_doc/issues/990) - [`54ba6c8`](https://github.com/elixir-lang/ex_doc/commit/54ba6c8dda6f982befeba15b5729c9cb3f14cce1) Update earmark dependency - See full diff in [compare view](https://github.com/elixir-lang/ex_doc/compare/v0.20.0...v0.20.1)

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[coveralls]

Coverage remained the same at 86.486% when pulling dc956f59a4895ebab7ac92dd11be9446513402be on dependabot/hex/ex_doc-0.20.1 into 2675f8c35af95377c8e4382813f5dba98bc17f22 on master.

[coveralls]

Coverage remained the same at 86.486% when pulling dc956f59a4895ebab7ac92dd11be9446513402be on dependabot/hex/ex_doc-0.20.1 into 2675f8c35af95377c8e4382813f5dba98bc17f22 on master.