Some fonts use foundry "pyrs" instead of "GOOG"

I *think* this is causing an app I use (emacs) to be unable to use italic. I don't know much about fonts, so I could be way off on this. I'm sure it could be argued that it should not matter, and emacs is buggy, but this looks like a mistake to me, and maybe it will fix the issue.
```
▶ rg pyrs
------------------------- Sun Sep 27 16:02:35 PDT 2020 -------------------------------
RobotoMono-BoldItalic.ufo/fontinfo.plist
118: pyrs

RobotoMono-ThinItalic.ufo/fontinfo.plist
118: pyrs

RobotoMono-Italic.ufo/fontinfo.plist
118: pyrs
▶ rg GOOG
------------------------- Sun Sep 27 16:02:40 PDT 2020 -------------------------------
RobotoMono-Bold.ufo/fontinfo.plist
149: GOOG

RobotoMono-Regular.ufo/fontinfo.plist
149: GOOG

RobotoMono-Thin.ufo/fontinfo.plist
149: GOOG
```

Compare the foundry entries in RobotoMono-BoldItalic.ufo/fontinfo.plist, RobotoMono-ThinItalic.ufo/fontinfo.plist, and RobotoMono-Italic.ufo/fontinfo.plist with the regular and bold files. Check whether the differing metadata affects italic use in Emacs, then verify that the affected italic fonts use the intended foundry value and that the reported behavior is resolved.

Written by the indexing model from the issue text.