Bump ddtrace from 0.47.0 to 0.48.0 (#13450)

Bumps [ddtrace](https://github.com/DataDog/dd-trace-rb) from 0.47.0 to 0.48.0.
- [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/v0.47.0...v0.48.0)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile

@@ -23,7 +23,7 @@ gem "carrierwave", "~> 2.2" # Upload files in your Ruby applications, map them t
 gem "carrierwave-bombshelter", "~> 0.2" # Protect your carrierwave from image bombs
 gem "cloudinary", "~> 1.20" # Client library for easily using the Cloudinary service
 gem "counter_culture", "~> 2.8" # counter_culture provides turbo-charged counter caches that are kept up-to-date
-gem "ddtrace", "~> 0.47.0" # ddtrace is Datadog’s tracing client for Ruby.
+gem "ddtrace", "~> 0.48.0" # ddtrace is Datadog’s tracing client for Ruby.
 gem "devise", github: "heartcombo/devise", ref: "0cd72a5" # Flexible authentication solution for Rails
 gem "devise_invitable", "~> 2.0.5" # 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

@@ -195,7 +195,8 @@ GEM
       puma (>= 3.8.0)
       railties (>= 5.2.0)
     dante (0.2.0)
-    ddtrace (0.47.0)
+    ddtrace (0.48.0)
+      ffi (~> 1.0)
       msgpack
     dead_end (1.1.6)
     debug_inspector (1.1.0)
@@ -877,7 +878,7 @@ DEPENDENCIES
   cloudinary (~> 1.20)
   counter_culture (~> 2.8)
   cypress-rails (~> 0.5.0)
-  ddtrace (~> 0.47.0)
+  ddtrace (~> 0.48.0)
   derailed_benchmarks (~> 2.0)
   devise!
   devise_invitable (~> 2.0.5)