Allow ruff to auto-fix trailing spaces in multi-line comments (#19221)

changelog.d/19221.misc

@@ -0,0 +1 @@
+Auto-fix trailing spaces in multi-line strings and comments when running the lint script.

pyproject.toml

@@ -269,6 +269,8 @@ extend-safe-fixes = [
     "UP007",
     # pyupgrade rules compatible with Python >= 3.10
     "UP045",
+    # Allow ruff to automatically fix trailing spaces within a multi-line string/comment.
+    "W293"
 ]
 
 [tool.ruff.lint.isort]