Add missing dunder overrides in array, tracemalloc and unittest.mock (#7248)

stdlib/tracemalloc.pyi

@@ -43,6 +43,7 @@ class Frame:
     filename: str
     lineno: int
     def __init__(self, frame: _FrameTupleT) -> None: ...
+    def __eq__(self, other: object) -> bool: ...
     def __lt__(self, other: Frame) -> bool: ...
     if sys.version_info >= (3, 11):
         def __gt__(self, other: Frame) -> bool: ...