Change OrderedDict to dict in perez and perez_driesse

[cbcrespo]

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This PR updates the output format of irradiance.perez and irradiance.perez_driesse when return_components=True, changing it from OrderedDict to a standard dict. The transition from OrderedDict to dict has been previously discussed in #1684.

As part of my GSoC 2026 project, I am modifying the diffuse transposition functions to ensure consistent support for the return_components parameter. During this work, I am also standardizing outputs by replacing remaining OrderedDict use with dict. perez and perez_driesse specifically do not require further changes beyond this update.

[kandersolar]

I think changing return type, even in such a minor way as this, is technically a breaking change, so I've added this to the v0.16.0 milestone.