✨ Content change - Build modified files

[babakamyljanovssw]

Cc: @adamcogan @bradystroud @tkapa @Calinator444 @tiagov8

Hi team

❌ Pain

Right now we change the content, merge it, and hope the build will be successful 🤞
We have tried to add some frontmatter validation, but it is hard to know the strange issues that will cause build failures, e.g. whitespace issue we had faced recently #1448

💡 Suggested Solution

New required PR check - on content repo Pull Requests try to build changed files (this will catch all the issues and future proof the solution)

Tasks

• Add new PR check as per description in the above
• For week leave it not required, and see if it is working.
• Then make it required check after successful tests

Thanks!