Draft: Bump mini_racer from 0.4.0 to 0.6.0

Bumps mini_racer from 0.4.0 to 0.6.0.

Changelog

Sourced from mini_racer's changelog.

• 0.6.0

  • Ruby 3.1 support
  • Fixes memory leak in heap snapshotting
  • Improved compilation ergonomics in clang
  • Migrated internal storage in c extension to TypedData

• 11-04-2021

• 0.5.0

  • Fixes issues on aarch (Apple M1)
  • Update to use libv8-node 16.x (#210) [Loic Nageleisen]
  • FEATURE: Configurable max marshal stack depth (#202) [seanmakesgames]
  • FEATURE: Configurable max marshal stack depth (#202) [seanmakesgames]
  • Ruby 2.3 and 2.4 are EOL, we no longer support them

Commits

• 2a7c5cc Version bump
• bdeaebd add -lstdc++ for clang for non-Darwin
• 1bd82a9 use CXXFLAGS for C++ compiler
• 8550bb3 drop rb_gc_force_recycle use
• feb8dc4 DEV: test_concurrent_access causing segfaults
• 81f3004 Add most important change in 0.5.0 to changelog. (#221)
• 0752264 rb_heap_snapshot: fix memory leak from fdopen
• 2725152 ExternalFunction: convert from T_DATA to T_OBJECT
• 9fcb481 Isolate: convert to TypedData
• 2310528 Snapshot: convert to TypedData
• Additional commits viewable in compare view