Merge pull request #43315 from Dilhasha/config-null-check

[2201.8.x] Avoid NPE during module name check

compiler/ballerina-lang/src/main/java/io/ballerina/projects/ConfigReader.java

@@ -137,7 +137,7 @@ private static boolean isDirectDependency(Collection<ModuleDependency> moduleDep
                         dependency.descriptor().packageName().value().equals(packageName) &&
                         (moduleName == null
                                 ? dependency.descriptor().name().moduleNamePart() == null
-                                : dependency.descriptor().name().moduleNamePart().equals(moduleName))
+                                : moduleName.equals(dependency.descriptor().name().moduleNamePart()))
         );
     }