[BUG] micro-tethys-platform requires django4.2

[sdc50]

When installing the latest dev build of micro-tethys-platform it will only install with django=4.2 (i.e. not django=4.2.*).

Looking for: ['micro-tethys-platform=4.2.0.post3.dev62', 'django=4.2.16']

tethysplatform/label/dev/osx-arm64                          Using cache
tethysplatform/label/dev/noarch                             Using cache
conda-forge/osx-arm64                                       Using cache
conda-forge/noarch                                          Using cache
Encountered problems while solving:
  - package micro-tethys-platform-4.2.0.post3.dev62+gda1d12a9.d20241028-dev62_gda1d12a9 requires django 4.2, but none of the providers can be installed

When I unpin micro-tethys-platform it resolves to micro-tethys-platform-4.2.0.post3.dev26, so something happened since then that prevents the patch versions of django to be compatible.

[sdc50]

I think the == in the install_tethys.sh is causing the issue.

        echo "Updating environment.yml Django version ${DJANGO_VERSION}..."
        sudo sed -i.bak "s/django>=.*/django==${DJANGO_VERSION}/" "${TETHYS_SRC}/environment.yml"
        sudo sed -i.bak "s/django>=.*/django==${DJANGO_VERSION}/" "${TETHYS_SRC}/micro_environment.yml"

If we replace it with just = then it will allow other patch versions of django=4.2. However, I think we want the conda packages to be installed with several versions of django/version. Since the conda recipe is derived from the environment.yml file I think we need to not modify the file, but just update the environment after creating it.

[sdc50]

fixed by #1109