Add Release Verification

[guineveresaenger]

Fixes pulumi/ci-mgmt#1266.

See a successful verification run against pulumi-gcp v8.16.0: https://github.com/pulumi/pulumi-gcp/actions/runs/13017715630

• Generate release verification workflow using tests in each language

[github-actions]

Does the PR have any schema changes?

Looking good! No breaking changes found.
No new resources/functions.

Maintainer note: consult the runbook for dealing with any breaking changes.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 0.00%. Comparing base (13fafb5) to head (081391b).
Report is 4 commits behind head on master.

Additional details and impacted files

@@          Coverage Diff           @@
##           master   #2905   +/-   ##
======================================
  Coverage    0.00%   0.00%           
======================================
  Files           3       3           
  Lines         161     161           
======================================
  Misses        161     161           

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[t0yv0]

        	Error:      	"Updating (test):\n\n +  pulumi:pulumi:Stack simple-bucket-test creating (0s) \n@ updating......\n +  gcp:storage:Bucket my-bucket creating (0s) \n@ updating....\n +  gcp:storage:Bucket my-bucket created (1s) \n +  pulumi:pulumi:Stack simple-bucket-test created (4s) \nResources:\n    + 2 created\n\nDuration: 5s\n\n" does not contain "unable to detect a global setting for GCP Project."
        	Test:       	TestNoGlobalProjectWarning
    provider_yaml_test.go:206: cleaning up stack
--- FAIL: TestNoGlobalProjectWarning (8.63s)

Something is a bit unhappy.

[guineveresaenger]

Probably unrelated? #1897

[pulumi-bot]

This PR has been shipped in release v8.17.0.