Merge pull request #940 from coderdojo-japan/dependabot/bundler/puma_worker_killer-0.3.0

Bump puma_worker_killer from 0.2.0 to 0.3.0

Author: yasulab

Gemfile.lock

@@ -108,7 +108,7 @@ GEM
     flamegraph (0.9.5)
     font-awesome-rails (4.7.0.5)
       railties (>= 3.2, < 6.1)
-    get_process_mem (0.2.6)
+    get_process_mem (0.2.7)
       ffi (~> 1.0)
     gh (0.16.0)
       activesupport (~> 5.0)
@@ -230,7 +230,7 @@ GEM
     public_suffix (4.0.6)
     puma (4.3.5)
       nio4r (~> 2.0)
-    puma_worker_killer (0.2.0)
+    puma_worker_killer (0.3.0)
       get_process_mem (~> 0.2)
       puma (>= 2.7, < 5)
     pusher-client (0.6.2)