silx.io.commonh5, silx.utils.array_like: Fixed numpy 2 deprecation warning

[t20100]

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In order to avoid the following deprecation warning:

 DeprecationWarning: __array__ implementation doesn't accept a copy keyword, so passing copy=False failed. __array__ must implement 'dtype' and 'copy' keyword arguments.

this PR adds a copy argument to __array__ methods as explained in the numpy 2 migration guide:

For any __array__ method on a non-NumPy array-like object, dtype=None and copy=None keywords must be added to the signature - this will work with older NumPy versions as well

[t20100]

Closing as supersed by PR #4149