ci: maintenance and adding 3.13 tests (#318)

* add 3.13 tests, update artifact up/download

* update pyprojecttoml for 3.13

Author: isabelizimm

.github/workflows/ci.yml

@@ -20,7 +20,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+        python: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
         os: ["ubuntu-latest"]
         pytest_opts: ["--workers 4 --tests-per-worker 1"]
         requirements: [""]
@@ -149,7 +149,7 @@ jobs:
         run: |
           make docs-build
       - name: Save docs artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: docs-html
           path: docs/_site
@@ -161,7 +161,7 @@ jobs:
     if: "${{github.event_name == 'pull_request' && !github.event.pull_request.head.repo.fork }}"
 
     steps:
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
         with:
           name: docs-html
           path: docs/_site
@@ -220,7 +220,7 @@ jobs:
     needs: ["build-docs", "tests", "test-rsconnect"]
     if: github.ref == 'refs/heads/main'
     steps:
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
         with:
           name: docs-html
           path: docs/_site

pyproject.toml

@@ -15,6 +15,7 @@ classifiers = [
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
     "License :: OSI Approved :: MIT License",
 ]
 requires-python = ">=3.8"