Log Message:
(www/R-webfakes) Updated 1.2.0 to 1.3.1

# webfakes 1.3.1

No changes.

# webfakes 1.3.0

* New `git_app()` app to fake a git HTTP server. See the webfakes test cases
  for examples.

* New `mw_cgi()` middleware to call CGI scripts. See the new `git_app()`
  for an example.

# webfakes 1.2.1

* `tmpl_glue()` now works correctly on platforms with an issue in
  `readChar(..., useBytes = TRUE)`, e.g. on macOS 14.x Sonoma:
  <https://bugs.r-project.org/show_bug.cgi?id=18605>.