[clang-tools-extra] [clang-tidy] Fix typoed option name in `bugprone-signed-char-misuse` (PR #161064)

[via cfe-commits]

================
@@ -35,7 +35,7 @@ class SignedCharMisuseCheck : public ClangTidyCheck {
       const ast_matchers::internal::Matcher<clang::QualType> &IntegerType,
       const std::string &CastBindName) const;
 
-  const StringRef CharTypdefsToIgnoreList;
+  const StringRef CharTypedefsToIgnoreList;
----------------
EugeneZelenko wrote:

```suggestion

private:
  const StringRef CharTypedefsToIgnoreList;
```

https://github.com/llvm/llvm-project/pull/161064