Add support for python 3.12

[veenstrajelmer]

Kind of request

None

Enhancement Description

With a local (pip) installation of hydromt_delft3dfm@fix-tests, the testbank runs without issues on python 3.12. But on github the installation of the env somehow fails:

This happens because hydromt 0.10.0 does not support python 3.12 according to conda:

  LibMambaUnsatisfiableError: Encountered problems while solving:
    - nothing provides _python_rc needed by python-3.12.0rc3-rc3_h2628c8c_1_cpython
  
  Could not solve for environment specs
  The following packages are incompatible
  \u251c\u2500 hydromt >=0.10.0,<0.15  is installable and it requires
  \u2502  \u2514\u2500 python >=3.9,<3.12  with the potential options
  \u2502     \u251c\u2500 python [3.10.0|3.10.1|...|3.9.9], which can be installed;
  \u2502     \u2514\u2500 python 3.12.0rc3 would require
  \u2502        \u2514\u2500 _python_rc, which does not exist (perhaps a missing channel);
  \u2514\u2500 python 3.12.*,>=3.9  is not installable because there are no viable options
     \u251c\u2500 python 3.12.0rc3, which cannot be installed (as previously explained);
     \u2514\u2500 python [3.12.0|3.12.1|...|3.12.6] conflicts with any installable versions previously reported.

This happens even though the pyproject.toml of hydromt 0.10.0 states requires-python = ">=3.9", so I wonder where the lack of support for python 3.12 comes from.

I would recommend moving away from conda install in general since it is way faster. This would also make it possible to test the package for python 3.12

Use case

No response

Additional Context

Related issues:

• Add support for Python 3.12 hydromt#540
• The conda install of hydromt seems to be broken hydromt#1041