Added: goss-linux-ppc64le binary to release

[smwltr]

Checklist

• [x] make test-all (UNIX) passes. CI will also test this
• [x] unit and/or integration tests are included (if applicable)
• [x] documentation is changed or added (if applicable)

Description of change

Add goss-linux-ppc64le build

This is based on https://github.com/goss-org/goss/pull/835

I'm not sure if the build system has changed since then.

The ARM64 build has been invaluable and now we also need PPC64LE. I can run the test suite on a PPC64LE machine once I create a build locally. IIRC, there is no CI running tests on anything other than AMD64. For now, here is an PR.