Simplify implementation (#14654)

Bumps [actions/upload-pages-artifact](https://github.com/actions/upload-pages-artifact) from 4 to 5.
- [Release notes](https://github.com/actions/upload-pages-artifact/releases)
- [Commits](actions/upload-pages-artifact@v4...v5)

---
updated-dependencies:
- dependency-name: actions/upload-pages-artifact
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: Miladkhoshdel

strings/capitalize.py

@@ -13,12 +13,11 @@ def capitalize(sentence: str) -> str:
     >>> capitalize("")
     ''
     """
-    if not sentence:
-        return ""
 
     # Capitalize the first character if it's a lowercase letter
     # Concatenate the capitalized character with the rest of the string
-    return sentence[0].upper() + sentence[1:]
+    # Slicing keeps this safe for empty strings.
+    return sentence[:1].upper() + sentence[1:]
 
 
 if __name__ == "__main__":