4.5.3: Removed outdated `maven.exasol.com` references

Summary

In this release, we removed references to the discontinued Exasol maven.exasol.com artifactory.

Refactoring

• #165: Removed references to outdated maven.exasol.com artifactory repository

Dependency Updates

Test Dependency Updates

• Updated nl.jqno.equalsverifier:equalsverifier:3.10.1 to 3.14.1
• Updated org.junit.jupiter:junit-jupiter:5.9.0 to 5.9.2
• Updated org.mockito:mockito-core:4.7.0 to 5.2.0
• Updated org.mockito:mockito-junit-jupiter:4.7.0 to 5.2.0

Plugin Dependency Updates

• Updated com.exasol:error-code-crawler-maven-plugin:1.1.2 to 1.2.2
• Updated com.exasol:project-keeper-maven-plugin:2.6.2 to 2.9.6
• Updated io.github.zlika:reproducible-build-maven-plugin:0.15 to 0.16
• Updated org.apache.maven.plugins:maven-deploy-plugin:3.0.0-M1 to 3.1.0
• Updated org.apache.maven.plugins:maven-enforcer-plugin:3.1.0 to 3.2.1
• Updated org.apache.maven.plugins:maven-javadoc-plugin:3.4.0 to 3.4.1
• Updated org.apache.maven.plugins:maven-surefire-plugin:3.0.0-M5 to 3.0.0-M8
• Updated org.codehaus.mojo:flatten-maven-plugin:1.2.7 to 1.3.0
• Updated org.codehaus.mojo:versions-maven-plugin:2.10.0 to 2.14.2
• Updated org.itsallcode:openfasttrace-maven-plugin:1.6.0 to 1.6.1