Log Message:
(www/R-httr) Updated 1.4.2 to 1.4.6

# httr 1.4.6

* Supress use of httpbin in examples and tests because it has become
  unreliable.

# httr 1.4.5

* An internal helper that checks for an interactive session in the OOB
  flow now honors the `"rlang_interactive"` global option, in case
  it's necessary to declare the session to be interactive (enough) for
  OOB (@jennybc, #734).

# httr 1.4.4

* Fix intermittent failing test.

# httr 1.4.3

* Fix failing test.