7903891: jcstress: Switch to latest runner versions

[shipilev]

We always playing the catchup game with runners. Let's just default to latest runners for every OS flavor.

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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-7903891: jcstress: Switch to latest runner versions (Enhancement - P4)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jcstress.git pull/154/head:pull/154
$ git checkout pull/154

Update a local copy of the PR:
$ git checkout pull/154
$ git pull https://git.openjdk.org/jcstress.git pull/154/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 154

View PR using the GUI difftool:
$ git pr show -t 154

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jcstress/pull/154.diff

Using Webrev

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[openjdk]

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[mlbridge]

Webrevs

• 00: Full (c826de6d)