fix(pyproject.toml): add tomli; python_version < 3.11 to requires; po…

…tential fix for pip install issue (missing setup.cfg) that seems to occur with python<3.11. Re-add python 3.10 to test.yaml matrix.

.github/workflows/test.yaml

@@ -15,7 +15,7 @@ jobs:
     strategy:
       matrix:
         os: [ ubuntu-latest, macos-latest, windows-latest ]
-        python-version: ['3.12', '3.11']
+        python-version: ['3.12', '3.11', '3.10']
         exclude:
           # tests with ubuntu-latest, python latest
           # are executed by build_docs.yaml

pyproject.toml

@@ -1,7 +1,7 @@
 [build-system]
 requires = [
     "setuptools >= 61",
-    #'tomli; python_version < "3.11"',
+    'tomli; python_version < "3.11"'
 ]
 build-backend = "setuptools.build_meta"
 
@@ -22,7 +22,7 @@ classifiers = [
     "Programming Language :: Python :: 3 :: Only",
     "Topic :: Scientific/Engineering :: Hydrology",
 ]
-requires-python = ">=3.11"
+requires-python = ">=3.10"
 dependencies = [
     "gis-utils",
     "fiona",