MGMT-18550: bump golang 1.21

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 55.70%. Comparing base (37fd43a) to head (011774d).

Additional details and impacted files

[](https://app.codecov.io/gh/openshift/assisted-installer/pull/894?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=openshift) ```diff @@ Coverage Diff @@ ## master #894 +/- ## ======================================= Coverage 55.70% 55.70% ======================================= Files 15 15 Lines 3208 3208 ======================================= Hits 1787 1787 Misses 1249 1249 Partials 172 172 ```

[openshift-ci[bot]]

@eifrach: all tests passed!

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[danmanor]

/lgtm

[openshift-ci[bot]]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: danmanor, eifrach

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[danmanor]

/remove-label downstream-change-needed

[danmanor]

/retitle MGMT-18550: bump golang 1.21

[openshift-ci-robot]

@eifrach: This pull request references MGMT-18550 which is a valid jira issue.

Warning: The referenced jira issue has an invalid target version for the target branch this PR targets: expected the task to target the "4.18.0" version, but no target version was set.

In response to [this](https://github.com/openshift/assisted-installer/pull/894): > Instructions for interacting with me using PR comments are available [here](https://prow.ci.openshift.org/command-help?repo=openshift%2Fassisted-installer). If you have questions or suggestions related to my behavior, please file an issue against the [openshift-eng/jira-lifecycle-plugin](https://github.com/openshift-eng/jira-lifecycle-plugin/issues/new) repository.

[openshift-bot]

[ART PR BUILD NOTIFIER]

Distgit: ose-agent-installer-csr-approver This PR has been included in build ose-agent-installer-csr-approver-container-v4.18.0-202408121342.p0.g4635ddf.assembly.stream.el9. All builds following this will include this PR.

[openshift-bot]

[ART PR BUILD NOTIFIER]

Distgit: ose-agent-installer-orchestrator This PR has been included in build ose-agent-installer-orchestrator-container-v4.18.0-202408121342.p0.g4635ddf.assembly.stream.el9. All builds following this will include this PR.