No-Jira(deps): Bump coveralls from 0.8.22 to 0.8.23

Bumps [coveralls](https://coveralls.io) from 0.8.22 to 0.8.23.

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

Gemfile.lock

@@ -21,17 +21,17 @@ GEM
     bump (0.6.1)
     coderay (1.1.2)
     concurrent-ruby (1.1.3)
-    coveralls (0.8.22)
+    coveralls (0.8.23)
       json (>= 1.8, < 3)
       simplecov (~> 0.16.1)
       term-ansicolor (~> 1.3)
-      thor (~> 0.19.4)
+      thor (>= 0.19.4, < 2.0)
       tins (~> 1.6)
     diff-lcs (1.3)
-    docile (1.3.1)
+    docile (1.3.2)
     i18n (0.9.5)
       concurrent-ruby (~> 1.0)
-    json (2.1.0)
+    json (2.3.0)
     method_source (0.9.0)
     minitest (5.11.3)
     parallel (1.12.1)
@@ -76,11 +76,13 @@ GEM
       json (>= 1.8, < 3)
       simplecov-html (~> 0.10.0)
     simplecov-html (0.10.2)
-    term-ansicolor (1.7.0)
+    sync (0.5.0)
+    term-ansicolor (1.7.1)
       tins (~> 1.0)
-    thor (0.19.4)
+    thor (1.0.1)
     thread_safe (0.3.6)
-    tins (1.20.2)
+    tins (1.25.0)
+      sync
     tzinfo (1.2.5)
       thread_safe (~> 0.1)
     unicode-display_width (1.4.0)