Pin CI to Python 3.12 and revert triangle version

Author: felicio93

.github/workflows/pylint.yml

@@ -30,6 +30,8 @@ jobs:
       with:
         environment-file: ./environment.yml
         environment-name: ocsmesh-env
+        extra-specs: |
+          python=3.12
     - name: Install dependencies
       shell: bash -l {0}
       run: pip install .[testing]

pyproject.toml

@@ -20,7 +20,7 @@ maintainers = [
 description = "Package to generate computational unstructured meshes for ocean simulation."
 license = {file = "LICENSE"}
 readme = "README.md"
-requires-python = '>=3.9, <3.15' # 3.8 -> scipy
+requires-python = '>=3.9, <3.13' # 3.8 -> scipy
 dependencies = [
     "colored-traceback<=0.3.0", 
     "fiona", "geopandas>=1.0.0",
@@ -41,11 +41,11 @@ ocsmesh = "ocsmesh.__main__:main"
 [project.optional-dependencies]
 gmsh = ["gmsh"]
 jigsaw = ["jigsawpy"]
-triangle = ["triangle>=20250106"]
-testing = ['pylint>=2.14', 'jigsawpy', 'triangle>=20250106','gmsh']
+triangle = ["triangle"]
+testing = ['pylint>=2.14', 'jigsawpy', 'triangle','gmsh']
 documentation = [
     'sphinx < 7.0.0', # due to sphinx_rtd_theme support
     'sphinx-rtd-theme', 'sphinx-argparse',
     'mistune==0.8.4', 'm2r2', 'numpydoc',
-    'jigsawpy', 'triangle>=20250106', 'gmsh'
+    'jigsawpy', 'triangle', 'gmsh'
 ]