Bump mini_racer from 0.2.4 to 0.4.0

[dependabot-preview]

Bumps mini_racer from 0.2.4 to 0.4.0.

Changelog

Sourced from mini_racer's changelog.

• 0.4.0

  • FEATURE: upgrade to libv8 node 15.14.0 (v8 8.6.395.17)
  • Promote 0.4.0.beta1 to release, using libv8-node release path

• 08-04-2021

• 0.4.0.beta1

  • FIX: on downgrade mkmf was picking the wrong version of libv8, this fix will correct future issues
  • FEATURE: upgraded libv8 to use node libv8 build which supports M1 and various ARM builds v8 moved to (8.6.395.17)

• 23-07-2020

• 0.3.1

  • FIX: specify that libv8 must be larger than 8.4.255 but smaller than 8.5, this avoids issues going forward

• 22-07-2020

• 0.3.0

  • FEATURE: upgraded to libv8 version 8.4.255.0

• 29-06-2020

• 0.2.15

  • FEATURE: basic wasm support via pump_message_loop

• 15-05-2020

• 0.2.14

  • FIX: ensure_gc_after_idle should take in milliseconds like the rest of the APIs not seconds
  • FEATURE: strict params on MiniRacer::Context.new

• 15-05-2020

• 0.2.13

  • FIX: edge case around ensure_gc_after_idle possibly firing when context is not idle

• 15-05-2020

• 0.2.12

  • FEATURE: isolate.low_memory_notification which can force a full GC
  • FEATURE: MiniRacer::Context.new(ensure_gc_after_idle: 2) - to force full GC 2 seconds after context is idle, this allows you to conserve memory on isolates

... (truncated)

Commits

• ccb9630 Promote beta to release
• 838539b Bump version for release
• 992c49e Fix version naming in GHA yml
• 119a302 Comply with Travis recommendations
• 7bac64d Widen matrix
• f5e742e Update Travis dist
• 7873685 Add GitHub Actions
• d58f646 Disable check for missing symbols at link time
• a875cac Update to libv8-node 15.12.0.0.beta1
• 0de2a33 Check for missing symbols at link time
• Additional commits viewable in compare view

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