Bump ddtrace from 0.39.0 to 0.40.0 (#10309)

* Bump ddtrace from 0.39.0 to 0.40.0

Bumps [ddtrace](https://github.com/DataDog/dd-trace-rb) from 0.39.0 to 0.40.0.
- [Release notes](https://github.com/DataDog/dd-trace-rb/releases)
- [Changelog](https://github.com/DataDog/dd-trace-rb/blob/master/CHANGELOG.md)
- [Commits](https://github.com/DataDog/dd-trace-rb/compare/v0.39.0...v0.40.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

* Bump ddtrace from 0.39.0 to 0.40.0 (Update vendor/cache)

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Gemfile

@@ -26,7 +26,7 @@ gem "carrierwave-bombshelter", "~> 0.2" # Protect your carrierwave from image bo
 gem "cld", "~> 0.8" # Compact Language Detection for Ruby
 gem "cloudinary", "~> 1.17" # Client library for easily using the Cloudinary service
 gem "counter_culture", "~> 2.6" # counter_culture provides turbo-charged counter caches that are kept up-to-date
-gem "ddtrace", "~> 0.39.0" # ddtrace is Datadog’s tracing client for Ruby.
+gem "ddtrace", "~> 0.40.0" # ddtrace is Datadog’s tracing client for Ruby.
 gem "devise", "~> 4.7" # Flexible authentication solution for Rails
 gem "devise_invitable", "~> 2.0.0" # Allows invitations to be sent for joining
 gem "dogstatsd-ruby", "~> 4.8" # A client for DogStatsD, an extension of the StatsD metric server for Datadog

Gemfile.lock

@@ -209,7 +209,7 @@ GEM
       database_cleaner (~> 1.8.0)
     datetime_picker_rails (0.0.7)
       momentjs-rails (>= 2.8.1)
-    ddtrace (0.39.0)
+    ddtrace (0.40.0)
       msgpack
     debug_inspector (0.0.3)
     derailed_benchmarks (1.7.0)
@@ -875,7 +875,7 @@ DEPENDENCIES
   cloudinary (~> 1.17)
   counter_culture (~> 2.6)
   database_cleaner-active_record (~> 1.8.0)
-  ddtrace (~> 0.39.0)
+  ddtrace (~> 0.40.0)
   derailed_benchmarks (~> 1.7)
   devise (~> 4.7)
   devise_invitable (~> 2.0.0)