Lift Python version upper limit

Cleaned up dependencies since Dagster is now gone.

Moved doc and dev requirements to pyproject.toml

Also, removed some auto-generated files in docs/source/autoapi
that were accidentally committed to the repo.

Re spine-tools/Spine-Toolbox#2522

.github/workflows/run_unit_tests.yml

@@ -13,7 +13,7 @@ jobs:
     strategy:
       matrix:
         os: [windows-latest, ubuntu-22.04]
-        python-version: [3.8, 3.9, "3.10", 3.11]
+        python-version: [3.8, 3.9, "3.10", 3.11, 3.12]
     steps:
     - uses: actions/checkout@v4
       with:
@@ -36,15 +36,11 @@ jobs:
         PYTHONUTF8: 1
       run: |
         python -m pip install --upgrade pip
-        pip install git+https://github.com/spine-tools/[email protected]#egg=spinedb_api
+        pip install -r requirements.txt
         pip install .[dev]
     - name: List packages
       run:
         pip list
-    - name: Install python3 kernelspecs
-      run: |
-        pip install ipykernel
-        python -m ipykernel install --user
     - name: Run tests
       run: |
         if [ "$RUNNER_OS" != "Windows" ]; then

.gitignore

@@ -1,12 +1,13 @@
 .idea
 __pycache__
-build
-dist
-spine_engine.egg-info
+build/
+dist/
+spine_engine.egg-info/
 .coverage
 htmlcov/
-spine_engine/server/certs
+spine_engine/server/certs/
 spine_engine/server/received_projects
 spine_engine/version.py
-tests/server/test_project
-tests/server/util/output
+tests/server/test_project/
+tests/server/util/output/
+docs/source/autoapi/

README.md

@@ -27,11 +27,6 @@ To install Spine Engine into an existing Python environment, run
 
     $ pip install spine_engine
 
-### Dependencies
-
-Spine Engine installation will install [dagster](https://dagster.readthedocs.io/en/master/index.html).
-
- 
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