Update scala.version to v2.13.16 (#2811)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

flink-end-to-end-tests/flink-end-to-end-tests-scala/pom.xml

@@ -33,7 +33,7 @@ under the License.
 		<!-- Use an old version that is not actively supported by Flink.
 		 	2.11 still 'just works' with our current maven setup,
 		 	and going forward we won't add support for it again.-->
-		<scala.version>2.13.15</scala.version>
+		<scala.version>2.13.16</scala.version>
 	</properties>
 
 	<dependencies>

flink-quickstart/flink-quickstart-scala/src/main/resources/archetype-resources/pom.xml

@@ -47,7 +47,7 @@ under the License.
 		<flink.version>@project.version@</flink.version>
 		<target.java.version>@target.java.version@</target.java.version>
 		<scala.binary.version>2.12</scala.binary.version>
-		<scala.version>2.13.15</scala.version>
+		<scala.version>2.13.16</scala.version>
 		<log4j.version>@log4j.version@</log4j.version>
 	</properties>
 

flink-rpc/flink-rpc-akka/pom.xml

@@ -35,7 +35,7 @@ under the License.
 	<properties>
 		<akka.version>2.8.8</akka.version>
 		<scala.binary.version>2.12</scala.binary.version>
-		<scala.version>2.13.15</scala.version>
+		<scala.version>2.13.16</scala.version>
 	</properties>
 
 	<dependencies>

pom.xml

@@ -135,7 +135,7 @@ under the License.
 		<scala.macros.version>2.1.1</scala.macros.version>
 		<!-- Default scala versions, must be overwritten by build profiles, so we set something
 		invalid here -->
-		<scala.version>2.13.15</scala.version>
+		<scala.version>2.13.16</scala.version>
 		<scala.binary.version>2.12</scala.binary.version>
 		<chill.version>0.10.0</chill.version>
 		<!-- keep FlinkContainersBuilder#buildZookeeperContainer() in sync -->