Sort templates.py imports to match the project isort config

[brendancol]

Closes #3577.

Runs isort over xrspatial/templates.py so the _template_data import block matches the project's line_length = 100 config. flake8 was already clean; this is the only style finding in the module.

• Collapses the _UPS_NORTH_EPSG / _UPS_SOUTH_EPSG import onto one line (98 chars, within the limit)
• Imports only, no runtime behavior change

Test plan:

• isort --check-only --diff xrspatial/templates.py passes
• flake8 xrspatial/templates.py stays clean

[brendancol]

Reviewed the diff. It collapses one wrapped import in xrspatial/templates.py onto a single line so the _template_data block passes isort under the project's line_length = 100 config.

• All names in the block stay imported; _UPS_NORTH_EPSG and _UPS_SOUTH_EPSG are both still used (lines 175-183), so nothing was dropped.
• Resulting line is 98 characters, within the 100-column limit. flake8 stays clean.
• Pure formatting, no runtime behavior change. Backend dispatch is unaffected.

No blockers, suggestions, or nits.