Update yarn.lock with current pprof-nodejs version (#3398)

Forgot to update yarn.lock when bumping pprof-nodejs version in a
previous PR.

Author: nsavoire

yarn.lock

@@ -409,10 +409,10 @@
     node-addon-api "^6.1.0"
     node-gyp-build "^3.9.0"
 
-"@datadog/pprof@3.0.0":
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/@datadog/pprof/-/pprof-3.0.0.tgz#b5e6df853589512ceb470c44cfc50cbe2ebfa5ab"
-  integrity sha512-nE/iWBX6h61SXrVWA6DeJ/m2iJX9ZNHrcoxFzHkK0LnSbNzrMlQZ0yw24ExhvIPLOFP4uFW057Cm48rsgr0NyQ==
+"@datadog/pprof@3.1.0":
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/@datadog/pprof/-/pprof-3.1.0.tgz#d58aac33985dbb71f77d85a41023a35f1ad55290"
+  integrity sha512-Bg8O8yrHeL2KKHXhLoAAT33ZfzLnZ6rWfOjy8PkcNhUJy3UwNVLbUoApf+99EyLjqpzpk/kZXrIAMBzMMB8ilg==
   dependencies:
     delay "^5.0.0"
     node-gyp-build "<4.0"