Merge pull request #22939 from stopmosk:21826-python-bindings-for-videocapturewaitany

Add Python bindings for VideoCapture::waitAny #21826

### Pull Request Readiness Checklist

See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request

- [x] I agree to contribute to the project under Apache 2 License.
- [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV
- [x] The PR is proposed to the proper branch
- [x] There is a reference to the original bug report and related work
- [x] There is accuracy test, performance test and test data in opencv_extra repository, if applicable
      Patch to opencv_extra has the same branch name.
- [x] The feature is well documented and sample code can be built with the project CMake

modules/python/src2/cv2_convert.cpp

@@ -444,6 +444,30 @@ PyObject* pyopencv_from(const int& value)
 
 // --- int64
 
+template<>
+bool pyopencv_to(PyObject* obj, int64& value, const ArgInfo& info)
+{
+    if (!obj || obj == Py_None)
+    {
+        return true;
+    }
+    if (isBool(obj))
+    {
+        failmsg("Argument '%s' must be integer, not bool", info.name);
+        return false;
+    }
+    if (PyArray_IsIntegerScalar(obj))
+    {
+        value = PyLong_AsLongLong(obj);
+    }
+    else
+    {
+        failmsg("Argument '%s' is required to be an integer", info.name);
+        return false;
+    }
+    return !CV_HAS_CONVERSION_ERROR(value);
+}
+
 template<>
 PyObject* pyopencv_from(const int64& value)
 {