fix: check pyproject.toml file exists before opening it

[klmcadams]

doc-style fails in main if pyproject.toml doesn't exist in the repository

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[RobPasMue]

Did we really merge this?????

[RobPasMue]

Next time, please make sure you do not merge these kind of changes.... testing on workflow files is not recommended for this reason. We should test on some other independent repo/branch/whatever....

[klmcadams]

@RobPasMue main was failing, so anyone who was using doc-style@main whose repo did not have the pyproject.toml file was going to experience failures. This change was meant to be temporary and was a quick fix to prevent other repo workflows from failing (if they are referring to main and don't have a pyproject.toml file). Also, the ci_cd file for this repository was not going to pass with doc-style as main since it doesn't have the pyproject.toml file, so I had to change it to the temporary branch in order for it to pass

[RobPasMue]

I understand why you did it, don't worry. But next time let's do it a bit differently...

• In your PR you merged a change on the workflow file for this repo. This workflow was now pointing to your-branch instead of main.
• When you merge a PR we delete the branch where the feature is implemented meaning that your workflow will now fail since the branch does not exist anymore.
• I know you didn't delete the branch this time, but the change you did to the workflow file was not needed and under normal circumstances and it would only cause problems.
• If this happens, its best to contact an admin to "force merge" the PR to main.
• Also, who is using the actions with main apart from this repo? Not recommended since it might not be stable 😄