[libvpx] Use msys2 perl on win32 hosts

[HybridEidolon]

Ensures the perl scripts for libvpx's generated headers generate correctly when the installation is under msys2.

Fixes #35592

• Changes comply with the maintainer guide
• SHA512s are updated for each updated download
• The "supports" clause reflects platforms that may be fixed by this new version
• Any fixed CI baseline entries are removed from that file.
• Any patches that are no longer applied are deleted from the port's directory.
• The version database is fixed by rerunning ./vcpkg x-add-version --all and committing the result.
• Only one version is added to each modified port's versions file.

[HybridEidolon]

@microsoft-github-policy-service agree

[BillyONeal]

Build reason was Pull Request, using binary caching in read write mode, skipping failures.

    Directory: C:\a\1\s

Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
d----          12/18/2023  9:57 PM                empty
Clearing contents of D:\b
##[error]error: failed to remove_all_inside(D:\b) due to \\?\D:\b\gettext:  The process cannot access the file because it is being used by another process.
vcpkg clean failed
At C:\a\1\s\scripts\azure-pipelines\test-modified-ports.ps1:133 char:5
+     throw "vcpkg clean failed"
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo          : OperationStopped: (vcpkg clean failed:String) [], RuntimeException
+ FullyQualifiedErrorId : vcpkg clean failed
##[error]PowerShell exited with code '1'.
Finishing: *** Test Modified Ports

Hmm that's a new one, doesn't seem related to this change though

[BillyONeal]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[BillyONeal]

I reset the physical mac machine

[BillyONeal]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[BillyONeal]

Thanks!