Fix NPE in ksp processing (#862)

Author: kylequera

querydsl-tooling/querydsl-ksp-codegen/src/main/kotlin/com/querydsl/ksp/codegen/QueryDslProcessor.kt

@@ -36,7 +36,7 @@ class QueryDslProcessor(
                 .writeTo(
                     codeGenerator = codeGenerator,
                     aggregating = false,
-                    originatingKSFiles = listOf(model.originatingFile)
+                    originatingKSFiles = listOfNotNull(model.originatingFile)
                 )
         }
     }

querydsl-tooling/querydsl-ksp-codegen/src/main/kotlin/com/querydsl/ksp/codegen/QueryModel.kt

@@ -8,7 +8,7 @@ class QueryModel(
     val typeParameterCount: Int,
     val className: ClassName,
     val type: QueryModelType,
-    val originatingFile: KSFile
+    val originatingFile: KSFile?
 ) {
     var superclass: QueryModel? = null
 

querydsl-tooling/querydsl-ksp-codegen/src/main/kotlin/com/querydsl/ksp/codegen/QueryModelExtractor.kt

@@ -112,7 +112,7 @@ class QueryModelExtractor(
             typeParameterCount = classDeclaration.typeParameters.size,
             className = queryClassName(classDeclaration, settings),
             type = type,
-            originatingFile = classDeclaration.containingFile!!
+            originatingFile = classDeclaration.containingFile
         )
     }