Lincheck 2.30

This is a big release for Lincheck. We changed how Lincheck instruments byte-code, so no more annoying add-opens ... are needed 🎉

Improvements

• Byte-code transformation via a dynamically attached Java agent by @avpotapov00, @eupp, and @ndkoval in #296
• Increase number of invocations for flaky stress tests by @ndkoval in #289
• Remove redundant default managed strategy guarantees by @eupp in #306
• Bump minimal plugin version to 0.2 by @zuevmaxim in #305

Full Changelog: lincheck-2.29...lincheck-2.30