Bump webmock from 3.12.0 to 3.12.2

[dependabot[bot]]

Bumps webmock from 3.12.0 to 3.12.2.

Changelog

Sourced from webmock's changelog.

3.12.2

• Fixed em-http-request adapter to avoid calling middleware twice.

  Thanks to Alex Vondrak

3.12.1

• Fixed handling of URIs with IPv6 addresses with square brackets when in Net::HTTP adapter.

  Thanks to Johanna Hartmann

Commits

• 4d37538 Version 3.11.2
• 6967c20 Merge branch 'ajvondt push origin master
• 2b87ab3 Merge branch 'master' of github.com:ajvondrak/webmock into ajvondrak-master
• 7437229 Removed trailing space.
• d06f87f HTTP/2 doesn’t have dot in version number.
• 443a4c7 Avoid redundantly calling em-http-request middleware
• 6ff8c0a Added httpx to the list of supported http libs.
• 06c3179 Version 3.12.1
• b4c95c2 Revert "Add specs"
• 79e60c9 Merge pull request #933 from JohannaHartmann/jh/fix-issue-806
• Additional commits viewable in compare view

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[pgwillia]

@dependabot rebase