Update dependency org.jetbrains.kotlinx:kotlinx-serialization-core-jvm to v1.8.0 (#2792)

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

Author: renovate[bot]

flink-end-to-end-tests/flink-glue-schema-registry-avro-test/pom.xml

@@ -88,7 +88,7 @@ under the License.
 			<dependency>
 				<groupId>org.jetbrains.kotlinx</groupId>
 				<artifactId>kotlinx-serialization-core-jvm</artifactId>
-				<version>1.7.3</version>
+				<version>1.8.0</version>
 			</dependency>
 			<dependency>
 				<groupId>org.checkerframework</groupId>

flink-end-to-end-tests/flink-glue-schema-registry-json-test/pom.xml

@@ -88,7 +88,7 @@ under the License.
 			<dependency>
 				<groupId>org.jetbrains.kotlinx</groupId>
 				<artifactId>kotlinx-serialization-core-jvm</artifactId>
-				<version>1.7.3</version>
+				<version>1.8.0</version>
 			</dependency>
 			<dependency>
 				<groupId>org.checkerframework</groupId>

flink-formats/flink-avro-glue-schema-registry/pom.xml

@@ -82,7 +82,7 @@ under the License.
 			<dependency>
 				<groupId>org.jetbrains.kotlinx</groupId>
 				<artifactId>kotlinx-serialization-core-jvm</artifactId>
-				<version>1.7.3</version>
+				<version>1.8.0</version>
 			</dependency>
 			<dependency>
 				<groupId>org.jetbrains</groupId>

flink-formats/flink-json-glue-schema-registry/pom.xml

@@ -83,7 +83,7 @@ under the License.
 			<dependency>
 				<groupId>org.jetbrains.kotlinx</groupId>
 				<artifactId>kotlinx-serialization-core-jvm</artifactId>
-				<version>1.7.3</version>
+				<version>1.8.0</version>
 			</dependency>
 			<dependency>
 				<groupId>io.github.classgraph</groupId>