Bump PMD to 7.18.0 and JUnit to 6.0.1 (#990)

- Updates `org.junit:junit-bom` from 6.0.0 to 6.0.1
- Updates `net.sourceforge.pmd:pmd-core` from 7.17.0 to 7.18.0
- Updates `net.sourceforge.pmd:pmd-java` from 7.17.0 to 7.18.0
- Updates `net.sourceforge.pmd:pmd-javascript` from 7.17.0 to 7.18.0
- Updates `net.sourceforge.pmd:pmd-jsp` from 7.17.0 to 7.18.0

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

java/pom.xml

@@ -40,7 +40,7 @@
         <javaReleaseVersion>8</javaReleaseVersion>
         <requireJavaVersion>17</requireJavaVersion>
         <skipUnitTests>${skipTests}</skipUnitTests>
-        <pmdVersion>7.17.0</pmdVersion>
+        <pmdVersion>7.18.0</pmdVersion>
     </properties>
 
     <dependencyManagement>
@@ -62,7 +62,7 @@
             <dependency>
                 <groupId>org.junit</groupId>
                 <artifactId>junit-bom</artifactId>
-                <version>6.0.0</version>
+                <version>6.0.1</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>