Bump github_changelog_generator from 1.15.2 to 1.16.1

Bumps [github_changelog_generator](https://github.com/github-changelog-generator/Github-Changelog-Generator) from 1.15.2 to 1.16.1.
- [Release notes](https://github.com/github-changelog-generator/Github-Changelog-Generator/releases)
- [Changelog](https://github.com/github-changelog-generator/github-changelog-generator/blob/master/CHANGELOG.md)
- [Commits](github-changelog-generator/github-changelog-generator@v1.15.2...v1.16.1)

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

Author: dependabot[bot]

Gemfile.lock

@@ -1,49 +1,84 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (6.0.3.2)
+    activesupport (6.1.3.1)
       concurrent-ruby (~> 1.0, >= 1.0.2)
-      i18n (>= 0.7, < 2)
-      minitest (~> 5.1)
-      tzinfo (~> 1.1)
-      zeitwerk (~> 2.2, >= 2.2.2)
+      i18n (>= 1.6, < 2)
+      minitest (>= 5.1)
+      tzinfo (~> 2.0)
+      zeitwerk (~> 2.3)
     addressable (2.7.0)
       public_suffix (>= 2.0.2, < 5.0)
-    concurrent-ruby (1.1.6)
-    faraday (1.0.1)
+    async (1.28.9)
+      console (~> 1.10)
+      nio4r (~> 2.3)
+      timers (~> 4.1)
+    async-http (0.54.1)
+      async (~> 1.25)
+      async-io (~> 1.28)
+      async-pool (~> 0.2)
+      protocol-http (~> 0.21.0)
+      protocol-http1 (~> 0.13.0)
+      protocol-http2 (~> 0.14.0)
+    async-http-faraday (0.9.0)
+      async-http (~> 0.42)
+      faraday
+    async-io (1.30.2)
+      async (~> 1.14)
+    async-pool (0.3.5)
+      async (~> 1.25)
+    concurrent-ruby (1.1.8)
+    console (1.10.2)
+      fiber-local
+    faraday (1.3.0)
+      faraday-net_http (~> 1.0)
       multipart-post (>= 1.2, < 3)
+      ruby2_keywords
     faraday-http-cache (2.2.0)
       faraday (>= 0.8)
+    faraday-net_http (1.0.1)
+    fiber-local (1.0.0)
     figaro (1.2.0)
       thor (>= 0.14.0, < 2)
-    github_changelog_generator (1.15.2)
+    github_changelog_generator (1.16.1)
       activesupport
+      async (>= 1.25.0)
+      async-http-faraday
       faraday-http-cache
       multi_json
       octokit (~> 4.6)
       rainbow (>= 2.2.1)
       rake (>= 10.0)
       retriable (~> 3.0)
-    i18n (1.8.5)
+    i18n (1.8.10)
       concurrent-ruby (~> 1.0)
-    minitest (5.14.1)
+    minitest (5.14.4)
     multi_json (1.15.0)
     multipart-post (2.1.1)
-    octokit (4.18.0)
+    nio4r (2.5.7)
+    octokit (4.20.0)
       faraday (>= 0.9)
       sawyer (~> 0.8.0, >= 0.5.3)
-    public_suffix (4.0.5)
+    protocol-hpack (1.4.2)
+    protocol-http (0.21.0)
+    protocol-http1 (0.13.2)
+      protocol-http (~> 0.19)
+    protocol-http2 (0.14.2)
+      protocol-hpack (~> 1.4)
+      protocol-http (~> 0.18)
+    public_suffix (4.0.6)
     rainbow (3.0.0)
-    rake (13.0.1)
+    rake (13.0.3)
     retriable (3.1.2)
+    ruby2_keywords (0.0.4)
     sawyer (0.8.2)
       addressable (>= 2.3.5)
       faraday (> 0.8, < 2.0)
     thor (1.0.1)
-    thread_safe (0.3.6)
-    tzinfo (1.2.7)
-      thread_safe (~> 0.1)
-    zeitwerk (2.4.0)
+    timers (4.3.3)
+    tzinfo (2.0.4)
+      concurrent-ruby (~> 1.0)
+    zeitwerk (2.4.2)
 
 PLATFORMS
   ruby