ci: add backward compatibillity check

[venilinvasilev]

Description:
This PR adds a ci check for backwards compatibillity, following semver strictly.
Will fail the build workflow if there are breaking changes, so developers get adequate feedback if they've introduced them unintentionally.

[lfdt-bot]

✅ Snyk checks have passed. No issues have been found so far.

Status	Scanner	Critical	High	Medium	Low	Total (0)
✅	Open Source Security	0	0	0	0	0 issues

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[codecov]

Codecov Report

❌ Patch coverage is 50.00000% with 4 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
src/client/NodeClient.js	33.33%	4 Missing ⚠️

Files with missing lines	Coverage Δ
src/client/Client.js	85.54% <100.00%> (+0.01%)	⬆️
src/client/NodeClient.js	84.29% <33.33%> (-0.73%)	⬇️

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