Invalid regular expressions when parsing `.patch` files

[jnwng]

when attempting to run on PRs that have .patch files, we hit an error somewhere:

2021-07-21T18:33:47.585Z use-herald-action:index We found an error calling GitHub: SyntaxError: Invalid regular expression: /packages/snowpack/patches/react-dates++react-portal+4.2.0.patch/: Nothing to repeat

you can generate the patches with patch-package to reproduce