Leonid Kondrashov

Add refined description for DAC lab

Duplication of config structures in open_yurt scripts

1

**Describe the enhancement** In addition of OpenYurt deployment to the vHive, structures `SystemEnvironmentStruct`, `KubeConfigStruct`, `KnativeConfigStruct` significantly duplicate the existing structures in `scripts/configs`. That makes the code hard to maintain configs...

## Summary `examples/protobuf/helloworld` dependencies will be updated by dependabot.

Tests not run for some PRs but required to pass

2

**Describe the bug** Github actions block the merge of the PRs with only changed markdown files. We require code quality and unit tests to pass, but we don't run them...