Support auto-fixing capabilities

[orchestr7]

Benedikt should be able to fix code and make commit suggestions on GitHub

Sub-tasks:

• Diktat produces wrong line:column numbers in the "fix" mode if multiple rules are applied diktat#1538.
• The action, when run in fix mode, should immediately fail if the local Git working copy is not clean

[0x6675636b796f75676974687562]

We can either wrap or let our users combine the existing actions with diKTat.

Existing actions:

• Create Pull Request, 1.1k stars
• Git Auto Commit, 1k stars
• Add & Commit, 623 stars
• reviewdog-suggester, 49 stars
• action-git-diff-suggestions, 99 stars.
• ESLint Suggestion, 21 star

There's a problem with suggestions, though: it's impossible to leave a review comment on lines that are not modified in the current PR.

Also blocked by saveourtool/diktat#1538.