Migrate test runner from mocha to vitest

[TeoBonza]

• Update project test runner from Mocha to Vitest

• Update actions/checkoutand actions/setup-node to latest version and removed the separate actions/cache, because yarn input replaces it. This update was needed because previous version were to old and CI failed immediately

[coveralls]

Coverage Report for CI Build 31689416861

Coverage increased (+4.4%) to 83.931%

Details

• Coverage increased (+4.4%) from the base build.
• Patch coverage: No coverable lines changed in this PR.
• 114 coverage regressions across 5 files.

Uncovered Changes

No uncovered changes found.

Coverage Regressions

114 previously-covered lines in 5 files lost coverage.

File	Lines Losing Coverage	Coverage
src/seq_stream.ts	60	67.73%
src/byte_stream.ts	16	94.49%
src/helpers.ts	16	1.85%
src/bit_stream.ts	15	91.26%
src/seq_bit_stream.ts	7	76.98%

---

Coverage Stats

Relevant Lines:	1702
Covered Lines:	1423
Line Coverage:	83.61%
Relevant Branches:	445
Covered Branches:	379
Branch Coverage:	85.17%
Branches in Coverage %:	Yes
Coverage Strength:	82.86 hits per line

---

💛 - Coveralls