Bump sentry-raven from 2.7.4 to 2.11.2

Bumps [sentry-raven](https://github.com/getsentry/raven-ruby) from 2.7.4 to 2.11.2.
- [Release notes](https://github.com/getsentry/raven-ruby/releases)
- [Changelog](https://github.com/getsentry/raven-ruby/blob/master/changelog.md)
- [Commits](getsentry/sentry-ruby@v2.7.4...v2.11.2)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Gemfile.lock

@@ -95,7 +95,7 @@ GEM
       i18n (>= 0.7)
     fakeredis (0.7.0)
       redis (>= 3.2, < 5.0)
-    faraday (0.15.3)
+    faraday (0.15.4)
       multipart-post (>= 1.2, < 3)
     fast_blank (1.0.0)
     fast_stack (0.2.0)
@@ -158,7 +158,7 @@ GEM
     mini_portile2 (2.3.0)
     minitest (5.11.3)
     multi_xml (0.6.0)
-    multipart-post (2.0.0)
+    multipart-post (2.1.1)
     nenv (0.3.0)
     nio4r (2.4.0)
     nokogiri (1.8.5)
@@ -322,7 +322,7 @@ GEM
     sawyer (0.8.1)
       addressable (>= 2.3.5, < 2.6)
       faraday (~> 0.8, < 1.0)
-    sentry-raven (2.7.4)
+    sentry-raven (2.11.2)
       faraday (>= 0.7.6, < 1.0)
     sexp_processor (4.10.1)
     shellany (0.0.1)