publish-commit-bottles: Fix bug with error message syntax from #53098 (#53104)
publish-commit-bottles: Fix bug with error message syntax from #53098 (#53104)

- I tried to be too clever. Given that I don't know JS, that was a bad
  idea. Let's do this the less elegant but (hopefully) definitely
  working way to avoid cryptic errors like:

```
[error]Cookies must be enabled to use GitHub.
```

from [`pr-publish` Actions runs](https://github.com/Homebrew/homebrew-core/runs/583194836?check_suite_focus=true).
jabenninghoff/homebrew-core,lembacon/homebrew-core,maxim-belkin/homebrew-core,dsXLII/homebrew-core,zyedidia/homebrew-core,mfikes/homebrew-core,mahori/homebrew-core,JCount/homebrew-core,stgraber/homebrew-core,Homebrew/homebrew-core,filcab/homebrew-core,adam-moss/homebrew-core,JCount/homebrew-core,uyjulian/homebrew-core,chrisfinazzo/homebrew-core,spaam/homebrew-core,dsXLII/homebrew-core,mbcoguno/homebrew-core,rwhogg/homebrew-core,lembacon/homebrew-core,adam-moss/homebrew-core,Moisan/homebrew-core,aabdnn/homebrew-core,maxim-belkin/homebrew-core,mbcoguno/homebrew-core,jvillard/homebrew-core,filcab/homebrew-core,aabdnn/homebrew-core,uyjulian/homebrew-core,sjackman/homebrew-core,jvillard/homebrew-core,sjackman/homebrew-core,jvillard/homebrew-core,stgraber/homebrew-core,mahori/homebrew-core,lemzwerg/homebrew-core,makigumo/homebrew-core,rwhogg/homebrew-core,nbari/homebrew-core,Linuxbrew/homebrew-core,chrisfinazzo/homebrew-core,zyedidia/homebrew-core,nandub/homebrew-core,nandub/homebrew-core,cblecker/homebrew-core,Linuxbrew/homebrew-core,makigumo/homebrew-core,spaam/homebrew-core,Homebrew/homebrew-core,nbari/homebrew-core,cblecker/homebrew-core,mbcoguno/homebrew-core,edporras/homebrew-core,Moisan/homebrew-core,jabenninghoff/homebrew-core,lembacon/homebrew-core,edporras/homebrew-core,lemzwerg/homebrew-core,mfikes/homebrew-core