Update actions/setup-go action to v6

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This PR contains the following updates:

Package	Type	Update	Change
actions/setup-go	action	major	v5 -> v6

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Release Notes

actions/setup-go (actions/setup-go)

v6

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1. .github/workflows/release.yml:20

• Draft comment:
  Review the use of actions/setup-go@v6 to confirm that the 'go-version' input is still supported as expected. Double-check the v6 release notes for any breaking changes.
• Reason this comment was not posted:
  Confidence changes required: 30% <= threshold 50% None

Workflow ID: wflow_nEceUrWx8jDDi1hE

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