Bump sentry-rails, sentry-ruby and sparkpost_rails

Bumps [sentry-rails](https://github.com/getsentry/sentry-ruby), [sentry-ruby](https://github.com/getsentry/sentry-ruby) and [sparkpost_rails](https://github.com/sunny/sparkpost_rails). These dependencies needed to be updated together.

Updates `sentry-rails` from 5.11.0 to 5.12.0
- [Release notes](https://github.com/getsentry/sentry-ruby/releases)
- [Changelog](https://github.com/getsentry/sentry-ruby/blob/master/CHANGELOG.md)
- [Commits](getsentry/sentry-ruby@5.11.0...5.12.0)

Updates `sentry-ruby` from 5.11.0 to 5.12.0
- [Release notes](https://github.com/getsentry/sentry-ruby/releases)
- [Changelog](https://github.com/getsentry/sentry-ruby/blob/master/CHANGELOG.md)
- [Commits](getsentry/sentry-ruby@5.11.0...5.12.0)

Updates `sparkpost_rails` from `41bb8a5` to 1.5.5
- [Commits](https://github.com/sunny/sparkpost_rails/commits)

---
updated-dependencies:
- dependency-name: sentry-rails
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: sentry-ruby
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: sparkpost_rails
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Gemfile.lock

@@ -132,7 +132,7 @@ GEM
     listen (3.8.0)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
-    loofah (2.21.3)
+    loofah (2.21.4)
       crass (~> 1.0.2)
       nokogiri (>= 1.12.0)
     mail (2.8.1)
@@ -153,14 +153,14 @@ GEM
     multi_json (1.15.0)
     mustermann (3.0.0)
       ruby2_keywords (~> 0.0.1)
-    net-imap (0.3.7)
+    net-imap (0.4.1)
       date
       net-protocol
     net-pop (0.1.2)
       net-protocol
     net-protocol (0.2.1)
       timeout
-    net-smtp (0.3.3)
+    net-smtp (0.4.0)
       net-protocol
     netrc (0.11.0)
     nio4r (2.5.9)
@@ -295,10 +295,10 @@ GEM
     ruby2_keywords (0.0.5)
     ruumba (0.1.17)
       rubocop
-    sentry-rails (5.11.0)
+    sentry-rails (5.12.0)
       railties (>= 5.0)
-      sentry-ruby (~> 5.11.0)
-    sentry-ruby (5.11.0)
+      sentry-ruby (~> 5.12.0)
+    sentry-ruby (5.12.0)
       concurrent-ruby (~> 1.0, >= 1.0.2)
     sinatra (3.1.0)
       mustermann (~> 3.0)
@@ -338,7 +338,7 @@ GEM
     websocket-driver (0.7.6)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.5)
-    zeitwerk (2.6.11)
+    zeitwerk (2.6.12)
 
 PLATFORMS
   ruby