Don't add chaperone space after escaped quote in triple quote (#17216)

Co-authored-by: Micha Reiser <micha@reiser.io>

crates/ruff_python_formatter/resources/test/fixtures/ruff/docstring_chaperones.py

@@ -0,0 +1,66 @@
+def a1():
+    """Needs chaperone\\" """
+
+def a2():
+    """Needs chaperone\\\ """
+
+def a3():
+    """Needs chaperone" """
+
+def a4():
+    """Needs chaperone\ """
+
+def a5():
+    """Needs chaperone\\\\\ """
+
+def a6():
+    """Needs chaperone\"" """
+
+def a7():
+    """Doesn't need chaperone\""""
+
+def a8():
+    """Doesn't need chaperone\'"""
+
+def a9():
+    """Doesn't need chaperone\\\""""
+
+def a10():
+    """Doesn't need chaperone\\\'"""
+
+def a11():
+    """Doesn't need chaperone; all slashes escaped\\\\"""
+
+def a12():
+    """Doesn't need chaperone\\"""
+
+def a12():
+    """Doesn't need "chaperone" with contained quotes"""
+
+def a13():
+    """Doesn't need chaperone\\\"\"\""""
+
+def a14():
+    """Multiline docstring
+    doesn't need chaperone
+    """
+
+def a15():
+    """Multiline docstring
+    doesn't need chaperone\
+    """
+
+def a16():
+    """Multiline docstring with
+    odd number of backslashes don't need chaperone\\\
+    """
+
+def a17():
+    """Multiline docstring with
+    even number of backslashes don't need chaperone\\\\
+    """
+
+def a18():
+    r"""Raw multiline docstring
+    doesn't need chaperone\
+    """