Bump omniauth from 2.1.1 to 2.1.2

Bumps [omniauth](https://github.com/omniauth/omniauth) from 2.1.1 to 2.1.2.
- [Release notes](https://github.com/omniauth/omniauth/releases)
- [Commits](https://github.com/omniauth/omniauth/compare/v2.1.1...v2.1.2)

---
updated-dependencies:
- dependency-name: omniauth
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Gemfile

@@ -36,7 +36,7 @@ gem "invisible_captcha", "~> 2.1.0"
 gem "jquery-fileupload-rails"
 gem "kaminari", "~> 1.2.2"
 gem "mini_magick", "~> 4.12.0"
-gem "omniauth", "~> 2.1.1"
+gem "omniauth", "~> 2.1.2"
 gem "omniauth-facebook", "~> 9.0.0"
 gem "omniauth-google-oauth2", "~> 1.1.1"
 gem "omniauth-rails_csrf_protection", "~> 1.0.1"

Gemfile.lock

@@ -383,7 +383,7 @@ GEM
     octokit (6.1.1)
       faraday (>= 1, < 3)
       sawyer (~> 0.9)
-    omniauth (2.1.1)
+    omniauth (2.1.2)
       hashie (>= 3.4.6)
       rack (>= 2.2.3)
       rack-protection
@@ -450,7 +450,8 @@ GEM
     rack (2.2.8.1)
     rack-accept (0.4.5)
       rack (>= 0.4)
-    rack-protection (3.1.0)
+    rack-protection (3.2.0)
+      base64 (>= 0.1.0)
       rack (~> 2.2, >= 2.2.4)
     rack-proxy (0.7.6)
       rack
@@ -742,7 +743,7 @@ DEPENDENCIES
   letter_opener_web (~> 2.0.0)
   mdl (~> 0.13.0)
   mini_magick (~> 4.12.0)
-  omniauth (~> 2.1.1)
+  omniauth (~> 2.1.2)
   omniauth-facebook (~> 9.0.0)
   omniauth-google-oauth2 (~> 1.1.1)
   omniauth-rails_csrf_protection (~> 1.0.1)