Drop EOL python 3.8 and update some CI config.

Author: ionelmc

Diff for: .cookiecutterrc

@@ -1,9 +1,6 @@
 # Generated by cookiepatcher, a small shim around cookiecutter (pip install cookiepatcher)
 
 default_context:
-    allow_tests_inside_package: 'no'
-    c_extension_function: '-'
-    c_extension_module: '-'
     c_extension_optional: 'yes'
     c_extension_support: 'yes'
     codacy: 'no'
@@ -17,17 +14,19 @@ default_context:
     email: [email protected]
     formatter_quote_style: single
     full_name: Ionel Cristian Mărieș
+    function_name: compute
     github_actions: 'yes'
     github_actions_osx: 'yes'
     github_actions_windows: 'yes'
     license: BSD 2-Clause License
+    module_name: cext
     package_name: lazy_object_proxy
     pre_commit: 'yes'
     project_name: lazy-object-proxy
     project_short_description: A fast and thorough lazy object proxy.
     pypi_badge: 'yes'
     pypi_disable_upload: 'no'
-    release_date: '2023-01-04'
+    release_date: '2023-12-15'
     repo_hosting: github.com
     repo_hosting_domain: github.com
     repo_main_branch: master
@@ -38,10 +37,11 @@ default_context:
     sphinx_docs: 'yes'
     sphinx_docs_hosting: https://python-lazy-object-proxy.readthedocs.io/
     sphinx_doctest: 'no'
-    sphinx_theme: sphinx-py3doc-enhanced-theme
+    sphinx_theme: furo
     test_matrix_separate_coverage: 'yes'
+    tests_inside_package: 'no'
     version: 1.10.0
     version_manager: bump2version
     website: https://blog.ionelmc.ro
     year_from: '2014'
-    year_to: '2023'
+    year_to: '2024'