[groovyscripting] Update Groovy to 4.0.9 and support slurpers (#14499)

Updates Groovy from 4.0.7 to 4.0.9.

For release notes, see:

https://groovy-lang.org/changelogs/changelog-4.0.8.html
https://groovy-lang.org/changelogs/changelog-4.0.9.html

Adds dependencies and service loader config so JSON, XML and YAML can be more easily parsed using the JsonSlurper, XmlSlurper and YamlSlurper.

Signed-off-by: Wouter Born <github@maindrain.net>

bundles/org.openhab.automation.groovyscripting/src/main/java/org/openhab/automation/groovyscripting/internal/GroovyScriptEngineFactory.java

@@ -44,7 +44,7 @@ public class GroovyScriptEngineFactory extends AbstractScriptEngineFactory {
             .flatMap(List::stream) //
             .collect(Collectors.toUnmodifiableList());
 
-    private final GroovyClassLoader gcl = new GroovyClassLoader();
+    private final GroovyClassLoader gcl = new GroovyClassLoader(GroovyScriptEngineFactory.class.getClassLoader());
 
     public GroovyScriptEngineFactory() {
         String scriptDir = OpenHAB.getConfigFolder() + File.separator + FILE_DIRECTORY;