chore(deps): lock file maintenance (#32)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

Gemfile.lock

@@ -24,7 +24,7 @@ GEM
       nap
       open4 (~> 1.3)
     colored2 (3.1.2)
-    concurrent-ruby (1.3.5)
+    concurrent-ruby (1.3.6)
     connection_pool (3.0.2)
     cork (0.3.0)
       colored2 (~> 3.1)
@@ -58,13 +58,13 @@ GEM
       rchardet (~> 1.8)
     i18n (1.14.7)
       concurrent-ruby (~> 1.0)
-    json (2.17.1)
+    json (2.18.0)
     kramdown (2.5.1)
       rexml (>= 3.3.9)
     kramdown-parser-gfm (1.1.0)
       kramdown (~> 2.0)
     logger (1.7.0)
-    minitest (5.26.2)
+    minitest (5.27.0)
     nap (1.1.0)
     net-http (0.8.0)
       uri (>= 0.11.1)