Update GKE version from 1.33 --> 1.34

[lucymcnatt]

Jira ticket: https://github.com/broadinstitute/terra-helmfile/pull/6470

Summary of changes

Linked ticket: #4917

What

• Update GKE to 1.34

Why

• 1.33 becomes EOL on 8/3

Testing these changes

What to test

Who tested and where

• This change is covered by automated tests
  • NB: Rerun automation tests on this PR by commenting jenkins retest or jenkins multi-test.
• I validated this change
• Primary reviewer validated this change
• I validated this change in the dev environment

[LizBaldo]

Thanks for doing that, do you have a ticket on the CTM backlog for the next update?

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 74.07%. Comparing base (d526a86) to head (e26af6d).

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #4917   +/-   ##
========================================
  Coverage    74.07%   74.07%           
========================================
  Files          131      131           
  Lines        11101    11101           
  Branches       891      891           
========================================
  Hits          8223     8223           
  Misses        2878     2878           

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