Fix gh actions

[alinkedd]

trafficstars

Fixes from #6651:

• Fixed the warning No files were found with the provided path: .next/analyze/__bundle_analysis_comment.txt. No artifacts will be uploaded. (warning example)
• Canceled Analyze Bundle (Comment) action (and thus fixed its failure) on the default branch by rewriting the condition, as GitHub's runner evaluation is tricky and sometimes provides false positives. Close #5801
• Fixed Analyze Bundle (Comment) action failure: Resource not accessible by integration (failure example)

Some of these fixes would work only after merging in main branch.

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These fixes are already implemented in uk.react.dev repo:

• no artifacts warning here https://github.com/reactjs/uk.react.dev/actions/runs/14335688559
• canceled Analyze Bundle (Comment) action on main https://github.com/reactjs/uk.react.dev/actions/runs/14335730258
• successful Analyze Bundle (Comment) action in PR https://github.com/reactjs/uk.react.dev/actions/runs/14456291339