chore: Remove numpy pin, pin datashader, drop Python 3.7 (#789)

* chore: Remove numpy pin and pin datashader

Datashader 0.15.0 removes error numpy.warnings removal:
holoviz/datashader#1176

* chore: Require Python >= 3.8

Author: jthetzel

.github/workflows/test.yml

@@ -13,7 +13,7 @@ jobs:
     strategy:
       matrix:
         os: ['ubuntu-latest', 'macos-latest', 'windows-latest']
-        python: [3.7, 3.8, 3.9, '3.10', 3.11]
+        python: [3.8, 3.9, '3.10', 3.11]
     env:
       OS: ${{ matrix.os }}
       PYTHON: ${{ matrix.python }}

setup.cfg

@@ -19,12 +19,12 @@ url = https://github.com/makepath/xarray-spatial
 [options]
 include_package_data = True
 install_requires =
-    datashader
+    datashader >= 0.15.0
     numba
     xarray
-    numpy <= 1.23.4
+    numpy
 packages = find:
-python_requires = >=3.7
+python_requires = >=3.8
 setup_requires = setuptools_scm
 zip_safe = False