Rasterio update to 1.3.0

[pz-max]

As noted in PR #240, for performance and stability gains it makes sense to move to the now available 1.3.0 version.

Change proposed in this Pull Request

Change the environment rasterio version to be >1.2.10

Description

Description of Rasterio 1.3.0 release: https://github.com/rasterio/rasterio/releases

How Has This Been Tested?

pre-commit run --all

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• I tested my contribution locally and it seems to work fine.
• I locally ran pytest inside the repository and no unexpected problems came up.
• I have added newly introduced dependencies to environment.yaml file.
• I have added a note to release notes doc/release_notes.rst.
• I have used pre-commit run --all to lint/format/check my contribution

[pz-max]

downsampling also looks good

[pz-max]

One could also write rasterio!=1.2.10 which really avoids the problematic version while allowing versions below 1.3.0

[FabianHofmann]

thanks @pz-max