small changes to environment.yml to mitigate issues with libwebp-base

[nhsavage]

add small updates to pyprecis environment to pick up latest version of libwebp-base

created by:

1. conda activate pyprecis-environment
2. conda install --no-deps -c conda-forge -y libwebp-base>=1.3.2
3. conda env export --no-builds pyprecis-environment.lock.yml

To test ran notebooks 1-3 from both domains