[jdk21u-dev] RFR: 8361478: GHA: Use MSYS2 from GHA runners

[Aleksey Shipilev]

On Fri, 15 Aug 2025 13:09:28 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> Improves GHA performance a bit. 
> 
> Additional testing:
>  - [x] GHA

Push approval granted.

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PR Comment: https://git.openjdk.org/jdk21u-dev/pull/2104#issuecomment-3219317148