Add stackprof for profiling

So you can do something like this:

```ruby
  require "stackprof"

  report = StackProf.run(mode: :wall, interval: 100) do
    Account.find_by(external_account_id: 123)
  end

  StackProf::Report.new(report).print_text
```

Gemfile

@@ -41,6 +41,7 @@ gem "useragent", bc: "useragent"
 # Operations
 gem "autotuner"
 gem "mission_control-jobs"
+gem "stackprof"
 gem "benchmark" # indirect dependency, being removed from Ruby 3.5 stdlib so here to quash warnings
 
 group :development, :test do

Gemfile.lock

@@ -437,6 +437,7 @@ GEM
       net-sftp (>= 2.1.2)
       net-ssh (>= 2.8.0)
       ostruct
+    stackprof (0.2.27)
     stimulus-rails (1.3.4)
       railties (>= 6.0.0)
     stringio (3.2.0)
@@ -529,6 +530,7 @@ DEPENDENCIES
   solid_cache (~> 1.0)
   solid_queue (~> 1.2)
   sqlite3 (>= 2.0)
+  stackprof
   stimulus-rails
   thruster
   trilogy (~> 2.9)

Gemfile.saas.lock

@@ -558,6 +558,7 @@ GEM
       net-sftp (>= 2.1.2)
       net-ssh (>= 2.8.0)
       ostruct
+    stackprof (0.2.27)
     stimulus-rails (1.3.4)
       railties (>= 6.0.0)
     stringio (3.2.0)
@@ -686,6 +687,7 @@ DEPENDENCIES
   solid_cache (~> 1.0)
   solid_queue (~> 1.2)
   sqlite3 (>= 2.0)
+  stackprof
   stimulus-rails
   stripe (~> 18.0)
   thruster