Relax type hints for xy and xytext in annotate (matplotlib#31428)

* Relax type hints for xy and xytext in annotate

The current type hints for xy and xytext are too strict (tuple[float, float]) compared to the actual flexibility supported at runtime (example, dates, etc).
This change relaxes the type hints to better reflect real usage.

* Apply suggestion from @timhoffm

Co-authored-by: Tim Hoffmann <2836374+timhoffm@users.noreply.github.com>

* Change types of xy and xytext parameters to Any

Update pyplot.py annotate function to use tuple[Any, Any] for xy and xytext parameters to match _axes.pyi changes and reflect actual runtime behavior of the API.

---------

Co-authored-by: Tim Hoffmann <2836374+timhoffm@users.noreply.github.com>

Author: dikshajangra12918-oss

lib/matplotlib/axes/_axes.pyi

@@ -133,8 +133,8 @@ class Axes(_AxesBase):
     def annotate(
         self,
         text: str,
-        xy: tuple[float, float],
-        xytext: tuple[float, float] | None = ...,
+        xy: tuple[Any, Any],
+        xytext: tuple[Any, Any] | None = ...,
         xycoords: CoordsType = ...,
         textcoords: CoordsType | None = ...,
         arrowprops: dict[str, Any] | None = ...,

lib/matplotlib/pyplot.py

@@ -3033,8 +3033,8 @@ def angle_spectrum(
 @_copy_docstring_and_deprecators(Axes.annotate)
 def annotate(
     text: str,
-    xy: tuple[float, float],
-    xytext: tuple[float, float] | None = None,
+    xy: tuple[Any, Any],
+    xytext: tuple[Any, Any] | None = None,
     xycoords: CoordsType = "data",
     textcoords: CoordsType | None = None,
     arrowprops: dict[str, Any] | None = None,