Update dependency require-in-the-middle to v4

[renovate]

This PR contains the following updates:

Package	Type	Update	Change	References
require-in-the-middle	dependencies	major	^3.0.0 -> ^4.0.0	source

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Release Notes

elastic/require-in-the-middle

v4.0.0

Compare Source

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[codecov-io]

Codecov Report

Merging #427 into master will decrease coverage by 0.03%.
The diff coverage is n/a.

@@            Coverage Diff            @@
##           master    #427      +/-   ##
=========================================
- Coverage   94.83%   94.8%   -0.04%     
=========================================
  Files         138     138              
  Lines        9144    9144              
  Branches      671     671              
=========================================
- Hits         8672    8669       -3     
- Misses        472     475       +3

Impacted Files	Coverage Δ
src/stackdriver-monitoring.ts	80.2% <0%> (-3.13%)	⬇️

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[mayurkale22]

ping @googlebot

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