ci: added loongarch64 build

[MarsDoge]

No description provided.

[achannarasappa]

Thanks for this contribution! The GOARCH value should be loong64 - as is, the release will fail (you can test locally with goreleaser release --snapshot --clean). There's also an issue with upx which comes up after setting the correct GOARCH: UnknownExecutableFormatException.

I'll have another look later to add support for this CPU architecture but I'd suggest double checking the build/release works locally if you'd like to continue to pursue this PR.

[MarsDoge]

@achannarasappa You are right, goarch should be loong64, I have corrected it.
But the execution result of goreleaser release --snapshot --clean seems to have a problem :

• only configurations files on version: 2 are supported, yours is version: 0 , please update your configuration
⨯ release failed after 0s error=only configurations files on version: 2 are supported, yours is version: 0 , please update your configuration