Add automated API docs generation and deployment workflow

[kpavlov]

This commit introduces a new Makefile target, apidocs, which organizes the generation of API documentation using Dokka. Additionally, a GitHub Actions workflow is added to automatically build and publish the documentation to GitHub Pages upon a release or manual trigger. These changes streamline the documentation process, ensuring up-to-date docs are easily accessible.

[codacy-production]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
✅ +0.00% (target: -1.00%)	✅ ∅

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (b4c1935)	127	89	70.08%
Head commit (7bad6d5)	127 (+0)	89 (+0)	70.08% (+0.00%)

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#38)	0	0	∅ (not applicable)

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

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