Describe the bug

I have a gem 'syck', "1.4.1" gem. Everything works fine unless I add gem 'elastic-apm', "4.7.2"

Steps to reproduce

Expected behavior

Environment

• OS:
  Docker container
• Ruby version:
  2.4.6
• Framework and version:
  3.2.22.5
• APM Server version:
• Agent version:

Additional context

Add any other context about the problem here.

• Agent config options

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  replace this line with your agent config options
  remember to mask any sensitive fields like tokens