Fix instrumentation meta method definition [RUN ALL RSPEC] [RUN AS-IF-FOSS]

What does this MR do?

Attempt to fix the 500s described in #338893 (closed) which appear on Ruby 3 branch on GDK.

How to setup and validate locally (strongly suggested)

• Revert the fix (or use the master)
• Switch to Ruby3 branch in GitLab: git checkout sh-test-with-ruby-3.0.0
• Make sure you use Ruby3, asdf local ruby 3.0.2; ruby -v
• gdk restart rails-web
• You'll receive args-count-related 500 on localhost
• Change anything in the code to trigger hot reload, any puts or comment is enough
• The issue will disappear
• Apply the fix in this branch or switch to it, there won't be an issue after the initial webserver restart

Does this MR meet the acceptance criteria?

Conformity

• I have included changelog trailers, or none are needed. (Does this MR need a changelog?)
• I have added/updated documentation, or it's not needed. (Is documentation required?)
• I have properly separated EE content from FOSS, or this MR is FOSS only. (Where should EE code go?)
• I have added information for database reviewers in the MR description, or it's not needed. (Does this MR have database related changes?)
• I have self-reviewed this MR per code review guidelines.
• This MR does not harm performance, or I have asked a reviewer to help assess the performance impact. (Merge request performance guidelines)
• I have followed the style guides.
• This change is backwards compatible across updates, or this does not apply.

Availability and Testing

• I have added/updated tests following the Testing Guide, or it's not needed. (Consider all test levels. See the Test Planning Process.)
• I have tested this MR in all supported browsers, or it's not needed.
• I have informed the Infrastructure department of a default or new setting change per definition of done, or it's not needed.

Security

N/A

Related to #338893 (closed)