Bump fog-openstack, rspec-rails and fog-core (#8877)

Bumps [fog-openstack](https://github.com/fog/fog-openstack), [rspec-rails](https://github.com/rspec/rspec-rails) and [fog-core](https://github.com/fog/fog-core). These dependencies needed to be updated together.

Updates `fog-openstack` from 0.3.6 to 1.0.3
- [Release notes](https://github.com/fog/fog-openstack/releases)
- [Changelog](https://github.com/fog/fog-openstack/blob/master/CHANGELOG.md)
- [Commits](https://github.com/fog/fog-openstack/compare/v0.3.6...v1.0.3)

Updates `rspec-rails` from 3.7.2 to 3.8.0
- [Release notes](https://github.com/rspec/rspec-rails/releases)
- [Changelog](https://github.com/rspec/rspec-rails/blob/master/Changelog.md)
- [Commits](https://github.com/rspec/rspec-rails/compare/v3.7.2...v3.8.0)

Updates `fog-core` from 1.45.0 to 2.1.2
- [Release notes](https://github.com/fog/fog-core/releases)
- [Changelog](https://github.com/fog/fog-core/blob/master/changelog.md)
- [Commits](https://github.com/fog/fog-core/compare/v1.45.0...v2.1.2)

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

Gemfile

@@ -16,8 +16,8 @@ gem 'pghero', '~> 2.2'
 gem 'dotenv-rails', '~> 2.2', '< 2.3'
 
 gem 'aws-sdk-s3', '~> 1.20', require: false
-gem 'fog-core', '~> 1.45'
-gem 'fog-openstack', '~> 0.3', require: false
+gem 'fog-core', '~> 2.1'
+gem 'fog-openstack', '~> 1.0', require: false
 gem 'paperclip', '~> 6.0'
 gem 'paperclip-av-transcoder', '~> 0.6'
 gem 'streamio-ffmpeg', '~> 3.0'
@@ -100,7 +100,7 @@ group :development, :test do
   gem 'i18n-tasks', '~> 0.9', require: false
   gem 'pry-byebug', '~> 3.6'
   gem 'pry-rails', '~> 0.3'
-  gem 'rspec-rails', '~> 3.7'
+  gem 'rspec-rails', '~> 3.8'
 end
 
 group :production, :test do

Gemfile.lock

@@ -215,15 +215,16 @@ GEM
     fast_blank (1.0.0)
     fastimage (2.1.4)
     ffi (1.9.25)
-    fog-core (1.45.0)
+    fog-core (2.1.2)
       builder
       excon (~> 0.58)
       formatador (~> 0.2)
+      mime-types
     fog-json (1.2.0)
       fog-core
       multi_json (~> 1.10)
-    fog-openstack (0.3.6)
-      fog-core (>= 1.45, <= 2.1.0)
+    fog-openstack (1.0.3)
+      fog-core (~> 2.1)
       fog-json (>= 1.0)
       ipaddress (>= 0.8)
     formatador (0.2.5)
@@ -503,26 +504,26 @@ GEM
     rpam2 (4.0.2)
     rqrcode (0.10.1)
       chunky_png (~> 1.0)
-    rspec-core (3.7.1)
-      rspec-support (~> 3.7.0)
-    rspec-expectations (3.7.0)
+    rspec-core (3.8.0)
+      rspec-support (~> 3.8.0)
+    rspec-expectations (3.8.1)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.7.0)
-    rspec-mocks (3.7.0)
+      rspec-support (~> 3.8.0)
+    rspec-mocks (3.8.0)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.7.0)
-    rspec-rails (3.7.2)
+      rspec-support (~> 3.8.0)
+    rspec-rails (3.8.0)
       actionpack (>= 3.0)
       activesupport (>= 3.0)
       railties (>= 3.0)
-      rspec-core (~> 3.7.0)
-      rspec-expectations (~> 3.7.0)
-      rspec-mocks (~> 3.7.0)
-      rspec-support (~> 3.7.0)
+      rspec-core (~> 3.8.0)
+      rspec-expectations (~> 3.8.0)
+      rspec-mocks (~> 3.8.0)
+      rspec-support (~> 3.8.0)
     rspec-sidekiq (3.0.3)
       rspec-core (~> 3.0, >= 3.0.0)
       sidekiq (>= 2.4.0)
-    rspec-support (3.7.1)
+    rspec-support (3.8.0)
     rubocop (0.59.2)
       jaro_winkler (~> 1.5.1)
       parallel (~> 1.10)
@@ -684,8 +685,8 @@ DEPENDENCIES
   faker (~> 1.8)
   fast_blank (~> 1.0)
   fastimage
-  fog-core (~> 1.45)
-  fog-openstack (~> 0.3)
+  fog-core (~> 2.1)
+  fog-openstack (~> 1.0)
   fuubar (~> 2.3)
   goldfinger (~> 2.1)
   hamlit-rails (~> 0.2)
@@ -742,7 +743,7 @@ DEPENDENCIES
   redis-namespace (~> 1.5)
   redis-rails (~> 5.0)
   rqrcode (~> 0.10)
-  rspec-rails (~> 3.7)
+  rspec-rails (~> 3.8)
   rspec-sidekiq (~> 3.0)
   rubocop (~> 0.59)
   ruby-progressbar (~> 1.4)