chore: update gems

Diffs:

[NEW!] https://rubygems.org/gems/logger/versions/1.6.6
[NEW!] https://rubygems.org/gems/ostruct/versions/0.6.1
https://my.diffend.io/gems/guard/2.18.1/2.19.1
https://my.diffend.io/gems/pry/0.14.2/0.15.2
https://my.diffend.io/gems/tilt/2.4.0/2.6.0
https://my.diffend.io/gems/webrick/1.8.2/1.9.1

Generated-by: dev update

Gemfile.lock

@@ -4,12 +4,14 @@ GEM
     coderay (1.1.3)
     ffi (1.17.1-x86_64-linux-gnu)
     formatador (1.1.0)
-    guard (2.18.1)
+    guard (2.19.1)
       formatador (>= 0.2.4)
       listen (>= 2.7, < 4.0)
+      logger (~> 1.6)
       lumberjack (>= 1.0.12, < 2.0)
       nenv (~> 0.1)
       notiffany (~> 0.0)
+      ostruct (~> 0.6)
       pry (>= 0.13.0)
       shellany (~> 0.0)
       thor (>= 0.18.1)
@@ -19,13 +21,15 @@ GEM
     listen (3.9.0)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
+    logger (1.6.6)
     lumberjack (1.2.10)
     method_source (1.1.0)
     nenv (0.3.0)
     notiffany (0.1.3)
       nenv (~> 0.1)
       shellany (~> 0.0)
-    pry (0.14.2)
+    ostruct (0.6.1)
+    pry (0.15.2)
       coderay (~> 1.1)
       method_source (~> 1.0)
     rake (13.2.1)
@@ -40,8 +44,8 @@ GEM
       tilt (>= 2.1.0)
     temple (0.10.3)
     thor (1.3.2)
-    tilt (2.4.0)
-    webrick (1.8.2)
+    tilt (2.6.0)
+    webrick (1.9.1)
 
 PLATFORMS
   x86_64-linux