Add rbtrace gem

Sometimes my test process is stuck and I can't know why it's stuck if I can't observe it. I hope rbtrace will help me diagnose what's going wrong.

Gemfile

@@ -319,6 +319,9 @@ group :development, :test do
   gem "ruby-prof", require: false
   gem "stackprof", require: false
 
+  # Output a stack trace anytime, useful when a process is stuck
+  gem "rbtrace"
+
   # REPL with debug commands
   gem "debug"
 

Gemfile.lock

@@ -786,6 +786,7 @@ GEM
     openssl (3.2.0)
     openssl-signature_algorithm (1.3.0)
       openssl (> 2.0)
+    optimist (3.1.0)
     os (1.1.4)
     ox (2.14.18)
     paper_trail (15.1.0)
@@ -917,6 +918,10 @@ GEM
     rb-inotify (0.11.1)
       ffi (~> 1.0)
     rb_sys (0.9.97)
+    rbtrace (0.5.1)
+      ffi (>= 1.0.6)
+      msgpack (>= 0.4.3)
+      optimist (>= 3.0.0)
     rbtree3 (0.7.1)
     rdoc (6.7.0)
       psych (>= 4.0.0)
@@ -1300,6 +1305,7 @@ DEPENDENCIES
   rails (~> 7.1.3)
   rails-controller-testing (~> 1.0.2)
   rails-i18n (~> 7.0.0)
+  rbtrace
   rdoc (>= 2.4.2)
   redis (~> 5.2.0)
   request_store (~> 1.7.0)