Update mysql-connector-j to 8.3.0

Author: scala-steward-bot

build.sbt

@@ -17,7 +17,7 @@ libraryDependencies += {
 libraryDependencies ++= Seq(
   "com.dimafeng" %% "testcontainers-scala" % "0.41.0" % "test",
   "org.testcontainers" % "mysql" % "1.19.3" % "test",
-  "com.mysql" % "mysql-connector-j" % "8.2.0" % "test",
+  "com.mysql" % "mysql-connector-j" % "8.3.0" % "test",
   "org.scalatest" %% "scalatest-funsuite" % "3.2.17" % "test",
   "com.h2database" % "h2" % "1.4.192" % "test",
   "ch.qos.logback" % "logback-classic" % "1.4.14" % "test"