[Java] fix LocalTime import for dateLibrary java8 (OpenAPITools#14111)

The import mapping for LocalTime still pointed to org.joda.time.*.
This one line made the jodatime dependency required.

modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractJavaCodegen.java

@@ -656,6 +656,7 @@ public void processOpts() {
             additionalProperties.put("jsr310", "true");
             typeMapping.put("date", "LocalDate");
             importMapping.put("LocalDate", "java.time.LocalDate");
+            importMapping.put("LocalTime", "java.time.LocalTime");
             if ("java8-localdatetime".equals(dateLibrary)) {
                 typeMapping.put("DateTime", "LocalDateTime");
                 importMapping.put("LocalDateTime", "java.time.LocalDateTime");