Modernize packaging

[cdce8p]

• Move project metadata to pyproject.toml
• Add SPDX license identifier -> MIT
• Remove outdate keys: platform, zip-safe
• Drop support for Python 3.8. Setuptools v77 requires 3.9. It's the first release which added support for PEP 639 license expressions.

Metadata diff

 ...
-Author: Daniel Perna
-Author-email: [email protected]
+Author-email: Daniel Perna <[email protected]>
-License: MIT License
+License-Expression: MIT
-Home-page: https://github.com/danielperna84/ha-philipsjs
-Download-URL: https://github.com/danielperna84/ha-philipsjs/tarball/3.2.3
+Project-URL: Homepage, https://github.com/danielperna84/ha-philipsjs
 Keywords: jointSPACE
-Platform: any
 Classifier: Intended Audience :: Developers
-Classifier: License :: OSI Approved :: MIT License
 Classifier: Operating System :: OS Independent
-Classifier: Programming Language :: Python :: 3.8
-Requires-Python: >=3.8
+Requires-Python: >=3.9
 ...

[cdce8p]

/CC @elupus

[cdce8p]

Any updates here?

[elupus]

Sorry will look at it as soon as i can. Has slipped my mind.

[elupus]

Looks good!