fix(deps): update dependency probot to v9.2.20

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
probot (source)	dependencies	patch	9.2.19 -> 9.2.20

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Release Notes

probot/probot

### [`v9.2.20`](https://togithub.com/probot/probot/releases/v9.2.20) [Compare Source](https://togithub.com/probot/probot/compare/v9.2.19...v9.2.20) ##### Bug Fixes - update hbs dependency to ^4.0.4 ([#​973](https://togithub.com/probot/probot/issues/973)) ([de79aab](https://togithub.com/probot/probot/commit/de79aab))

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