Update dependency org.web3j:web3j-maven-plugin to v4.13.0

Author: renovate[bot]

pom.xml

@@ -32,7 +32,7 @@
  <plugin>
  <groupId>org.web3j</groupId>
  <artifactId>web3j-maven-plugin</artifactId>
- <version>4.11.0</version>
+ <version>4.13.0</version>
  <configuration>
  <packageName>pl.piomin.services.contract.model</packageName>
  <sourceDestination>contract-service/src/main/generated</sourceDestination>