util|finagle|finatra|twitter-server|scrooge: Bump Scalacheck to 1.15.4 in sbt

Problem

Scala 3 requires Scalacheck 1.15.x but the sbt builds currently uses 1.14.x

Solution

Upgrade Scalacheck in build.sbt to 1.15.4 to simplify Scala 3 cross-building.

Result

The tests use Scalacheck 1.15.4.  We still use `scalatestplus scalacheck-1-14`
because there is no `1-15` version available for Scalatest 3.1.x.

Closes twitter/util#291
Signed-off-by: Lily He <[email protected]>

JIRA Issues: CSL-11064

Differential Revision: https://phabricator.twitter.biz/D691691

Author: felixbr

CHANGELOG.rst

@@ -12,6 +12,8 @@ Runtime Behavior Changes
 
 * finagle: Update Caffeine cache library to version 2.9.1 ``PHAB_ID=D660908``
 
+* finagle: Update Scalatest to version 1.15.4 ``PHAB_ID=D691691``
+
 * finagle-http: remove the `com.twitter.finagle.http.UseH2`,
   `com.twitter.finagle.http.UseH2CClients2`, `com.twitter.finagle.http.UseH2CServers` and
   `com.twitter.finagle.http.UseHttp2MultiplexCodecClient` toggles. The configuration for

build.sbt

@@ -147,7 +147,7 @@ val sharedSettings = Seq(
   libraryDependencies ++= Seq(
     // See https://www.scala-sbt.org/0.13/docs/Testing.html#JUnit
     "com.novocode" % "junit-interface" % "0.11" % "test",
-    "org.scalacheck" %% "scalacheck" % "1.14.3" % "test",
+    "org.scalacheck" %% "scalacheck" % "1.15.4" % "test",
     "org.scalatest" %% "scalatest" % "3.1.1" % "test",
     "org.scalatestplus" %% "junit-4-12" % "3.1.2.0" % "test",
     "org.scalatestplus" %% "mockito-1-10" % "3.1.0.0" % "test",