test(yaml): fix tests for new ruamel.yaml

Current tests expect incorrect YAML line wrapping.
Line wrapping has been fixed in
commx/ruamel-yaml@8c46a1a
https://sourceforge.net/p/ruamel-yaml/code/ci/375c4db4c7c5fad61e149fc0690e50229df23ab3/

Author: dbohdan

tests/long-line-default.yaml

@@ -1,4 +1,4 @@
 balanceHeld:
-  description: Balance of the account held for transferring to other users (in cents)
-    and then a bunch more text after that
+  description: Balance of the account held for transferring to other users (in 
+    cents) and then a bunch more text after that
   type: integer

tests/test_remarshal.py

@@ -693,13 +693,13 @@ def test_yaml_width_default(self, convert_and_read) -> None:
 
     def test_yaml_width_5(self, convert_and_read) -> None:
         output = convert_and_read("long-line.json", "json", "yaml", width=5).decode()
-        assert len([char for char in output if char == "\n"]) == 23
+        assert len([char for char in output if char == "\n"]) == 24
 
     def test_yaml_width_120(self, convert_and_read) -> None:
         output = convert_and_read("long-line.json", "json", "yaml", width=120).decode(
             "utf-8"
         )
-        assert len([char for char in output if char == "\n"]) == 3
+        assert len([char for char in output if char == "\n"]) == 4
 
     def test_yaml_ident_5(self, convert_and_read) -> None:
         output = convert_and_read(