feat: enable CI for pull request

[dyxushuai]

Related #75 #76
+r @Wollac

[flaub]

Could you provide more context with what this change is for? I think we should avoid the whitespace changes and use a common formatter/lint tool to ensure different users don't introduce different whitespace.

[dyxushuai]

Could you provide more context with what this change is for? I think we should avoid the whitespace changes and use a common formatter/lint tool to ensure different users don't introduce different whitespace.

Related to this pr #75 (comment)

[dyxushuai]

I think we should avoid the whitespace changes and use a common formatter/lint tool to ensure different users don't introduce different whitespace.

Yeah, I agree. This file was formatted by the suggestion of this issue in official vscode github action extension marketplace.visualstudio.com/items?itemName=GitHub.vscode-github-actions.

[dyxushuai]

Yeah, I agree. This file was formatted by the suggestion of this issue in official vscode github action extension marketplace.visualstudio.com/items?itemName=GitHub.vscode-github-actions.

FYI, https://marketplace.visualstudio.com/items?itemName=redhat.vscode-yaml

[flaub]

If we want to start enforcing a style on these files, then we need to have a CI check to ensure that the file can't be landed in a bad style.

[dyxushuai]

good idea, using CI lints CI file, haha

[dyxushuai]

good idea, using CI lints CI file, haha

@flaub I added yamllint for CI files and tested it locally. It worked as expected.