chore: add stackprof and memory_profiler gems

Gemfile

@@ -113,6 +113,7 @@ group :development do
   gem 'brakeman', require: false
   gem 'haml-lint'
   gem 'letter_opener_web'
+  gem 'memory_profiler'
   gem 'rack-mini-profiler'
   gem 'rails-erd', require: false # generates `doc/database_models.pdf`
   gem 'rubocop', require: false
@@ -120,6 +121,7 @@ group :development do
   gem 'rubocop-rails', require: false
   gem 'rubocop-rspec', require: false
   gem 'scss_lint', require: false
+  gem 'stackprof'
   gem 'web-console'
 end
 

Gemfile.lock

@@ -418,6 +418,7 @@ GEM
       rest-client (>= 2.0.0)
     marcel (1.0.2)
     matrix (0.4.2)
+    memory_profiler (1.0.0)
     method_source (1.0.0)
     mime-types (3.3.1)
       mime-types-data (~> 3.2015)
@@ -713,6 +714,7 @@ GEM
       actionpack (>= 5.2)
       activesupport (>= 5.2)
       sprockets (>= 3.0.0)
+    stackprof (0.2.21)
     strong_migrations (0.8.0)
       activerecord (>= 5.2)
     strscan (3.0.3)
@@ -873,6 +875,7 @@ DEPENDENCIES
   logstash-event
   mailjet
   matrix
+  memory_profiler
   mina
   net-imap
   net-pop
@@ -918,6 +921,7 @@ DEPENDENCIES
   spreadsheet_architect
   spring
   spring-commands-rspec
+  stackprof
   strong_migrations
   timecop
   turbo-rails