Bump webmock from 3.7.6 to 3.8.3

Bumps webmock from 3.7.6 to 3.8.3.

Changelog

Sourced from webmock's changelog.

3.8.3

• Fixed problem introduced in version 3.4.2, which caused matching against Addressable::Template representing host part of the URI to raise an error.

  Thanks to Vesa Laakso

3.8.2

• Support correct encoding parameter for HTTP.rb 2.x and earlier

  Thanks to Alex Coomans

3.8.1

• Added support for mocking non-ASCII bodies when making requests with HTTP.rb

  Thanks to Patrik Ragnarsson

3.8.0

• Fixed options handling when initialising Async::HTTP::Client

  Thanks to Samuel Williams

• Ruby 2.7 support.

  Thanks to Ryan Davis and Brandur

Commits

• 904aa98 Version 3.8.3
• 0fec93b Merge pull request #797 from valscion/template-in-host-part
• 77e8543 Fix matching when URI can't be normalized
• 70f4a24 Add negative match assertion spec
• 16d6386 Merge branch 'master' into template-in-host-part
• a9cf1b7 Version 3.8.2
• 82af577 Merge pull request #876 from drcapulet/alexc-old-http-rb
• db60b2d Support correct encoding parameter for HTTP.rb 2.x and earlier
• 4256c29 Version 3.8.1
• 895a7ec Merge pull request #874 from dentarg/http_rb-preserve-body-encoding
• Additional commits viewable in compare view