Allow longer characters for wstring

Signed-off-by: Michael X. Grey <[email protected]>

Author: mxgrey

examples/message_demo/src/message_demo.rs

@@ -16,7 +16,7 @@ fn check_default_values() {
     assert_eq!(msg.string_member.to_string(), "Χαίρετε 你好");
     assert_eq!(msg.wstring_member.to_string(), "αντίο σου 再见");
     assert_eq!(msg.bounded_string_member.to_string(), "aou");
-    assert_eq!(msg.bounded_wstring_member.to_string(), "aou");
+    assert_eq!(msg.bounded_wstring_member.to_string(), "äöü");
     assert_eq!(
         msg.string_array.clone().map(|s| s.to_string()),
         ["R", "O", "S", "2"].map(String::from)

examples/rclrs_example_msgs/msg/VariousTypes.msg

@@ -14,7 +14,7 @@ float32[] float_seq_unbounded [6.0]
 string string_member "Χαίρετε 你好"
 wstring wstring_member "αντίο σου 再见"
 string<=3 bounded_string_member "aou"
-wstring<=3 bounded_wstring_member "aou"
+wstring<=3 bounded_wstring_member "äöü"
 
 # Array/sequence of string type
 string[4] string_array ["R", "O", "S", "2"]