Bump omniauth from 1.8.1 to 1.9.2

Bumps [omniauth](https://github.com/omniauth/omniauth) from 1.8.1 to 1.9.2.
- [Release notes](https://github.com/omniauth/omniauth/releases)
- [Commits](omniauth/omniauth@v1.8.1...v1.9.2)

---
updated-dependencies:
- dependency-name: omniauth
  dependency-type: indirect
...

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

Gemfile.lock

@@ -168,7 +168,7 @@ GEM
       guard (~> 2.0)
       rubocop (~> 0.20)
     hashdiff (0.3.7)
-    hashie (3.5.7)
+    hashie (5.0.0)
     http (3.0.0)
       addressable (~> 2.3)
       http-cookie (~> 1.0)
@@ -243,8 +243,8 @@ GEM
       multi_json (~> 1.3)
       multi_xml (~> 0.5)
       rack (>= 1.2, < 3)
-    omniauth (1.8.1)
-      hashie (>= 3.4.6, < 3.6.0)
+    omniauth (1.9.2)
+      hashie (>= 3.4.6)
       rack (>= 1.6.2, < 3)
     omniauth-github (1.3.0)
       omniauth (~> 1.5)
@@ -271,7 +271,7 @@ GEM
     pundit (1.1.0)
       activesupport (>= 3.0.0)
     racc (1.6.1)
-    rack (2.2.3.1)
+    rack (2.2.4)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails (5.1.5)