Replace StackProf with Vernier for performance profiling

Gemfile

@@ -29,7 +29,7 @@ gem "hotwire_combobox", github: "josefarias/hotwire_combobox", ref: "b827048a830
 gem "good_job"
 
 # Error logging
-gem "stackprof"
+gem "vernier"
 gem "rack-mini-profiler"
 gem "sentry-ruby"
 gem "sentry-rails"

Gemfile.lock

@@ -470,7 +470,6 @@ GEM
     simplecov_json_formatter (0.1.4)
     smart_properties (1.17.0)
     sorbet-runtime (0.5.11813)
-    stackprof (0.2.27)
     stimulus-rails (1.3.4)
       railties (>= 6.0.0)
     stringio (3.1.3)
@@ -501,6 +500,7 @@ GEM
     useragent (0.16.11)
     vcr (6.3.1)
       base64
+    vernier (1.5.0)
     web-console (4.2.1)
       actionview (>= 6.0.0)
       activemodel (>= 6.0.0)
@@ -579,13 +579,13 @@ DEPENDENCIES
   sentry-rails
   sentry-ruby
   simplecov
-  stackprof
   stimulus-rails
   stripe
   tailwindcss-rails
   turbo-rails
   tzinfo-data
   vcr
+  vernier
   web-console
   webmock
 

config/initializers/sentry.rb

@@ -14,5 +14,7 @@ if ENV["SENTRY_DSN"].present?
     # of sampled transactions.
     # We recommend adjusting this value in production.
     config.profiles_sample_rate = 0.5
+
+    config.profiler_class = Sentry::Vernier::Profiler
   end
 end