fix: gcp version bump to resolve security risk

[bbehnke]

Which problem is this PR solving?

Resolves a high risk security vulnerability found in gcp-metadata > [email protected].
https://snyk.io/vuln/SNYK-JS-JSONBIGINT-608659

Short description of the changes

Updated from dependency from gcp-metadata@^3.5.0 to gcp-metadata@^4.1.4. gcp-metadata@^4.1.4 uses json-bigint@^1.0.0 which resolves the security risk.

[linux-foundation-easycla]

• ✅ bbehnke (29948e7)

• ❌The commit (a292ad6 ,d86da98a1ef23f15ae0c596e5f58cfc6102b3ae2 ,f6a7455bcc8ab977fa06f050bd79fdb63c9cdc31) is missing the User's ID, preventing the EasyCLA check. Consult GitHub Help to resolve. For further assistance with EasyCLA, please submit a support request ticket.

[codecov]

Codecov Report

Merging #1467 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1467   +/-   ##
=======================================
  Coverage   93.85%   93.85%           
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  Files         153      153           
  Lines        4656     4656           
  Branches      960      960           
=======================================
  Hits         4370     4370           
  Misses        286      286