How do you migrate from JUnit 5 to JUnit 6?

<!-- Step 1: Update the BOM version in pom.xml -->
<dependencyManagement>
  <dependencies>
    <dependency>
      <groupId>org.junit</groupId>
      <artifactId>junit-bom</artifactId>
      <version>6.1.1</version>  <!-- was 5.14.x -->
      <type>pom</type>
      <scope>import</scope>
    </dependency>
  </dependencies>
</dependencyManagement>

<!-- Step 2: Update Maven Surefire/Failsafe to 3.x -->
<!-- (versions older than 3.0.0 are no longer supported by JUnit 6) -->
<plugin>
  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-surefire-plugin</artifactId>
  <version>3.5.0</version>
</plugin>

<!-- Gradle: -->
// build.gradle.kts
dependencies {
    testImplementation(platform("org.junit:junit-bom:6.1.1"))
    testImplementation("org.junit.jupiter:junit-jupiter")
}
tasks.test {
    useJUnitPlatform()
}

/* Step 3: Fix compiler errors from removed APIs:
   - Replace Alphanumeric with MethodName
   - Remove junit-platform-runner dependency
   - Remove @RunWith(JUnitPlatform.class) usages
   - Fix malformed @CsvSource data (extra chars after quotes)
   - Ensure Java 17+ baseline

   Step 4: Run the test suite and fix any FastCSV-related
   failures from stricter CSV parsing */