[clang-tidy] Enable bugprone-unchecked-optional-access

Author: zeyi2

clang-tools-extra/clang-tidy/.clang-tidy

@@ -7,7 +7,7 @@ Checks: >
   -bugprone-branch-clone,
   -bugprone-easily-swappable-parameters,
   -bugprone-narrowing-conversions,
-  -bugprone-unchecked-optional-access,
+  bugprone-unchecked-optional-access,
   -bugprone-unused-return-value,
   misc-const-correctness,
   modernize-*,