* Eventing setup in CI
- Update test-infra
- Use library functions for setting up released and latest Eventing
- Set up Eventing 0.10.2 and nightly release in `latest-release` and default e2e tests CI job respectively
* Fix typo in variable name and update formatting
- Uses custom `unit_tests` function in presubmit-tests.sh to run unit tests
- Custom function adds a flag `-mod=vendor` in addition to default unit tests runner
- The deps are already downloaded part of the source repo, mentioned flag uses it (vendor dir)
and avoids downloading the deps afresh
- This prevents(in unit tests) the flake we see 'go: error loading module requirements' which occurs
due to download error
Fixes#364
- Ensure kn cross platform build works in pre-submit tests
- Run ./hack/build.sh -x after running existing pre-submit tests
- defines a function post_build_tests to invoke cross platform builds
- post_build_tests will be run by test-infra after build tests are compelete
coryrc