ci: add dprint and lychee actions + ci optimization

[mgrachev]

✔ Checklist:

• Commit messages have been written in Conventional Commits format;
• This PR has been added to CHANGELOG.md (at the top of the list);
• Tests for the changes have been added (for bug fixes / features);
• Docs have been added / updated on the dotenv-linter.github.io (for bug fixes / features).

[codecov-commenter]

Codecov Report

Merging #503 (ee214ea) into master (4e75501) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #503   +/-   ##
=======================================
  Coverage   98.94%   98.94%           
=======================================
  Files          43       43           
  Lines        2757     2757           
=======================================
  Hits         2728     2728           
  Misses         29       29           

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[github-actions]

This PR is stale because it has been open 14 days with no activity. Remove stale label or comment or this will be closed in 5 days.

[github-actions]

This PR is stale because it has been open 14 days with no activity. Remove stale label or comment or this will be closed in 5 days.

[github-actions]

This PR was closed because it has been stalled for 5 days with no activity.

[github-actions]

This PR is stale because it has been open 14 days with no activity. Remove stale label or comment or this will be closed in 5 days.

[github-actions]

This PR was closed because it has been stalled for 5 days with no activity.