Updated dependencies to clear dependabot warnings

Gemfile

@@ -1,3 +1,3 @@
 source 'https://rubygems.org'
 
-gem 'octokit', '~> 4.7'
+gem 'octokit', '~> 4.25'

Gemfile.lock

@@ -1,23 +1,28 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.5.1)
-      public_suffix (~> 2.0, >= 2.0.2)
-    faraday (0.12.2)
-      multipart-post (>= 1.2, < 3)
-    multipart-post (2.0.0)
-    octokit (4.7.0)
-      sawyer (~> 0.8.0, >= 0.5.3)
-    public_suffix (2.0.5)
-    sawyer (0.8.1)
-      addressable (>= 2.3.5, < 2.6)
-      faraday (~> 0.8, < 1.0)
+    addressable (2.8.5)
+      public_suffix (>= 2.0.2, < 6.0)
+    base64 (0.2.0)
+    faraday (2.7.11)
+      base64
+      faraday-net_http (>= 2.0, < 3.1)
+      ruby2_keywords (>= 0.0.4)
+    faraday-net_http (3.0.2)
+    octokit (4.25.1)
+      faraday (>= 1, < 3)
+      sawyer (~> 0.9)
+    public_suffix (5.0.3)
+    ruby2_keywords (0.0.5)
+    sawyer (0.9.2)
+      addressable (>= 2.3.5)
+      faraday (>= 0.17.3, < 3)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
-  octokit (~> 4.7)
+  octokit (~> 4.25)
 
 BUNDLED WITH
-   1.12.0
+   1.17.2