• Validate the JSON struct which might get corrupted by wrong FREEZE/THAW
  methods, or other serializers, or corrupting our magic object. (GH #192)
  
• Improve our DESTROY and END methods to avoid NULL dereferences.
  Fixes perl-compiler/#438
  
• Fix 3 tests in t/20_unknown.t with the latest 5.35.10 bool enhancements
  and JSON::PP (GH #194)
  
• Fix t/118_type.t with Windows ivtype long long. (GH #178)
  
• Added github actions