7903850: JCStress: Upgrade GitHub Action Runner image for macOS

[izeye]

This PR upgrades GitHub Action Runner image for macOS to macos-12 as macos-11 seems to have been removed.

See https://github.com/actions/runner-images?tab=readme-ov-file#available-images and actions/runner-images#9255

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Progress

• Change must not contain extraneous whitespace
• Change must be properly reviewed (1 review required, with at least 1 Committer)

Issue

• CODETOOLS-7903850: JCStress: Upgrade GitHub Action Runner image for macOS (Enhancement - P4)

Reviewers

• Aleksey Shipilev (@shipilev - Committer)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jcstress.git pull/152/head:pull/152
$ git checkout pull/152

Update a local copy of the PR:
$ git checkout pull/152
$ git pull https://git.openjdk.org/jcstress.git pull/152/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 152

View PR using the GUI difftool:
$ git pr show -t 152

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jcstress/pull/152.diff

Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back izeye! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[openjdk]

@izeye This change now passes all automated pre-integration checks.

After integration, the commit message for the final commit will be:

7903850: JCStress: Upgrade GitHub Action Runner image for macOS

Reviewed-by: shade

You can use pull request commands such as /summary, /contributor and /issue to adjust it as needed.

At the time when this comment was updated there had been no new commits pushed to the master branch. If another commit should be pushed before you perform the /integrate command, your PR will be automatically rebased. If you prefer to avoid any potential automatic rebasing, please check the documentation for the /integrate command for further details.

As you do not have Committer status in this project an existing Committer must agree to sponsor your change. Possible candidates are the reviewers of this PR (@shipilev) but any other Committer may sponsor as well.

➡️ To flag this PR as ready for integration with the above commit message, type /integrate in a new comment. (Afterwards, your sponsor types /sponsor in a new comment to perform the integration).

[mlbridge]

Webrevs

• 01: Full - Incremental (b33edc67)
• 00: Full (207580f9)

[openjdk]

@izeye Please do not rebase or force-push to an active PR as it invalidates existing review comments. Note for future reference, the bots always squash all changes into a single commit automatically as part of the integration. See OpenJDK Developers’ Guide for more information.

[izeye]

/integrate

[openjdk]

@izeye
Your change (at version b33edc6) is now ready to be sponsored by a Committer.

[shipilev]

/sponsor

[openjdk]

Going to push as commit eb1a23c.

[openjdk]

@shipilev @izeye Pushed as commit eb1a23c.

💡 You may see a message that your pull request was closed with unmerged commits. This can be safely ignored.