fix(strings): transliterate ß, æ, ø and Ł in slugify

AUTHORS.rst

@@ -89,3 +89,4 @@ Contributors
 - Arin Aeruva, `arin30@github <https://github.com/arin30>`_
 - Cyber Marty, `Cyber-Marty@github <https://github.com/Cyber-Marty>`_
 - Rajatendu Dey, `Rajatendu1@github <https://github.com/Rajatendu1>`_
+- Jay Hemnani, `jayhemnani9910@github <https://github.com/jayhemnani9910>`_

CHANGELOG.rst

@@ -6,6 +6,8 @@ Changelog
 Unreleased
 ----------
 
+- Transliterate letters like ``ß``, ``æ``, ``ø`` and ``Ł`` in ``slugify`` through ``deburr`` instead of
+  dropping them.
 - Search values in generic mappings with ``includes`` and respect the start offset.
 - Support ``range`` objects in ``index_of``, including when a start index is supplied.
 - Merge nested mutable mappings in place instead of replacing their existing contents, including

src/pydash/strings.py

@@ -1728,7 +1728,7 @@ def slugify(text: t.Any, separator: str = "-") -> str:
         Remove single quotes from output.
     """
     normalized = (
-        unicodedata.normalize("NFKD", pyd.to_string(text))
+        unicodedata.normalize("NFKD", deburr(pyd.to_string(text)))
         .encode("ascii", "ignore")
         .decode("utf8")
         .replace("'", "")

tests/test_strings.py

@@ -898,6 +898,7 @@ def test_series_phrase_serial(case, expected):
         (" foo bar ", "foo-bar"),
         ("Un éléphant à l'orée du bois", "un-elephant-a-loree-du-bois"),
         ("shouldn't couldn't wouldn't", "shouldnt-couldnt-wouldnt"),
+        ("Ærøskøbing Straße", "aeroskobing-strasse"),
         ("", ""),
         (5, "5"),
         (None, ""),