[Bot] Update docs for latest fastlane release 2.195.0 (actions.md, available-plugins.md) 🚀

[joshdholtz]

Auto-generated by fastlane bot 🤖

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[revolter]

@googlebot I consent

[fastlane-bot-helper]

	2 Warnings
⚠️	mkdocs.yml was modified - make sure no modification was made by mistake
⚠️	It seems like the page crashlytics: actions/crashlytics.md got removed from mkdocs.yml, we don't want to remove any public links. Instead please add a redirect to the new page.

Generated by 🚫 Danger

[revolter]

Because fastlane/fastlane#19371 removed an action, the documentation for it needed to be removed too, but manually (or so it looks), so I did it on this branch, to fix the failing tests.

I also added a redirect, but I can't test it locally.

[revolter]

The redirect works: https://docs.fastlane.tools/actions/crashlytics 😌