Bump omniauth from 1.9.1 to 1.9.2

Bumps [omniauth](https://github.com/omniauth/omniauth) from 1.9.1 to 1.9.2.
- [Release notes](https://github.com/omniauth/omniauth/releases)
- [Commits](omniauth/omniauth@v1.9.1...v1.9.2)

---
updated-dependencies:
- dependency-name: omniauth
  dependency-type: direct:production
...

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

Gemfile.lock

@@ -378,7 +378,7 @@ GEM
     hamster (3.0.0)
       concurrent-ruby (~> 1.0)
     hashdiff (1.0.1)
-    hashie (4.1.0)
+    hashie (5.0.0)
     hiredis (0.6.3)
     honeybadger (4.7.2)
     htmlentities (4.3.4)
@@ -662,7 +662,7 @@ GEM
       faraday (>= 0.9)
       sawyer (~> 0.8.0, >= 0.5.3)
     okcomputer (1.18.4)
-    omniauth (1.9.1)
+    omniauth (1.9.2)
       hashie (>= 3.4.6)
       rack (>= 1.6.2, < 3)
     omniauth-shibboleth (1.3.0)