bug(gitpod): change Kubebuilder curl (#9097)

[josephmcasey]

Closes #9097

Checklist:

• Either (a) I've created an enhancement proposal and discussed it with the community, (b) this is a bug fix, or (c) this does not need to be in the release notes.
• The title of the PR states what changed and the related issues number (used for the release note).
• I've included "Closes [ISSUE #]" or "Fixes [ISSUE #]" in the description to automatically close the associated issue.
• I've updated both the CLI and UI to expose my feature, or I plan to submit a second PR with them.
• Does this PR require documentation updates?
• I've updated documentation as required by this PR.
• Optional. My organization is added to USERS.md.
• I have signed off all my commits as required by DCO
• I have written unit and/or e2e tests for my change. PRs without these are unlikely to be merged.
• My build is green (troubleshooting builds).

Screenshots:

https://gitpod.io/#https://github.com/argoproj/argo-cd

Gitpod after modifying .gitpod.Dockerfile

No problems remaining after altering GOCACHE

[codecov]

Codecov Report

Merging #9197 (b153499) into master (88134c4) will decrease coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #9197      +/-   ##
==========================================
- Coverage   46.06%   46.04%   -0.02%     
==========================================
  Files         217      217              
  Lines       25912    25912              
==========================================
- Hits        11936    11931       -5     
- Misses      12319    12323       +4     
- Partials     1657     1658       +1     

Impacted Files	Coverage Δ
applicationset/services/scm_provider/github.go	75.29% <0.00%> (-5.89%)	⬇️

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[alexmt]

LGTM. Thank you!