Bump websocket-extensions from 0.1.2 to 0.1.5

[dependabot[bot]]

Bumps websocket-extensions from 0.1.2 to 0.1.5.

Changelog

Sourced from websocket-extensions's changelog.

0.1.5 / 2020-06-02

• Remove a ReDoS vulnerability in the header parser (CVE-2020-7663)

0.1.4 / 2019-06-10

• Fix a deprecation warning for using the =~ operator on true
• Change license from MIT to Apache 2.0

0.1.3 / 2017-11-11

• Accept extension names and parameters including uppercase letters

Commits

• 8108e77 Bump version to 0.1.5
• c36eb3e Remove ReDoS vulnerability in the Sec-WebSocket-Extensions header parser
• 8174a4a Test on JRuby 9.{0,1,2} rather than "head"
• 9605980 Update Ruby versions 2.4 to 2.7 on Travis
• bd6d0ac Mention license change in the changelog
• a8c8478 Formatting change: {...} should have spaces inside the braces
• 242f007 Bump version to 0.1.4
• 249bcc1 Change markdown formatting of docs.
• 738a0af Fix deprecation warning about =~ being called on TrueClass.
• 68c1b21 Fix RSpec warnings about raise_error with no arguments.
• Additional commits viewable in compare view

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