cosign dependency bump

[vdemeester]

Changes

• go.mod: switch to go 1.18
• Update cosign dependency to latest : this fixes a bunch of security issues

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• [x] Run make test lint before submitting a PR
• [x] Includes tests (if functionality changed/added)
• [ ] Includes docs (if user facing)
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Release Notes

Update cosign to v1.11.0

[tekton-robot]

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[tekton-robot]

New changes are detected. LGTM label has been removed.

[vdemeester]

/retest

[vdemeester]

/retest

[afrittoli]

/test pull-tekton-operator-integration-tests

[afrittoli]

--- FAIL: TestTektonChainsGettingStartedTutorial (92.87s)
    --- PASS: TestTektonChainsGettingStartedTutorial/create-pipeline (20.03s)
    --- PASS: TestTektonChainsGettingStartedTutorial/create-chain (10.03s)
    --- PASS: TestTektonChainsGettingStartedTutorial/create_cosign_key_pair (1.65s)
    --- PASS: TestTektonChainsGettingStartedTutorial/replace_Chains_ConfigMap (0.10s)
    --- PASS: TestTektonChainsGettingStartedTutorial/restart_chains_pod (0.10s)
    --- PASS: TestTektonChainsGettingStartedTutorial/create_TaskRun (0.18s)
    --- PASS: TestTektonChainsGettingStartedTutorial/wait_for_TaskRun_to_succeed (20.04s)
    --- PASS: TestTektonChainsGettingStartedTutorial/wait_for_TaskRun_to_get_signed (0.01s)
    --- FAIL: TestTektonChainsGettingStartedTutorial/cosign_verify-blob (0.01s)

I guess the failure is an actual one here?

[afrittoli]

https://github.com/tektoncd/operator/blob/ed48f3dfbf6394c936cdbbeee00ecdde173f9630/test/e2e/common/04_tektonchainsgettingstartedtutorial_test.go#L212

[tekton-robot]

@vdemeester: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-tekton-operator-integration-tests	64921b6851f576c0692aa0acf3580f813deb226e	link	true	/test pull-tekton-operator-integration-tests

Full PR test history. Your PR dashboard.

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[tekton-robot]

@vdemeester: PR needs rebase.

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[piyush-garg]

@vdemeester cosign has been bumped, can you rebase the PR if there are any other changes or close if no other changes?

[vdemeester]

I'll close for now..