Bump omniauth-google-oauth2 from 0.5.3 to 0.5.4

Bumps [omniauth-google-oauth2](https://github.com/zquestz/omniauth-google-oauth2) from 0.5.3 to 0.5.4.
- [Release notes](https://github.com/zquestz/omniauth-google-oauth2/releases)
- [Changelog](https://github.com/zquestz/omniauth-google-oauth2/blob/master/CHANGELOG.md)
- [Commits](zquestz/omniauth-google-oauth2@v0.5.3...v0.5.4)

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

Gemfile.lock

@@ -112,7 +112,7 @@ GEM
       exception_notification
       ruby-pushbullet
     execjs (2.7.0)
-    faraday (0.15.3)
+    faraday (0.15.4)
       multipart-post (>= 1.2, < 3)
     ffi (1.9.25)
     garage-doorkeeper (2.0.0)
@@ -209,7 +209,7 @@ GEM
       rack (>= 1.6.2, < 3)
     omniauth-facebook (5.0.0)
       omniauth-oauth2 (~> 1.2)
-    omniauth-google-oauth2 (0.5.3)
+    omniauth-google-oauth2 (0.5.4)
       jwt (>= 1.5)
       omniauth (>= 1.1.1)
       omniauth-oauth2 (>= 1.5)