chore: Update packaging jobs (#19)

- Default to Python 3.12.
- Default to use pyproject.toml as requirements file.
- Fetch all tags to allow VCS versioning.

.github/workflows/python-publish.yaml

@@ -7,18 +7,19 @@ on:
       requirements_file:
         type: "string"
         required: false
-        default: "setup.cfg"
+        default: "pyproject.toml"
       python-version:
         type: "string"
         required: false
-        default: "3.11"
+        default: "3.12"
 
 jobs:
   build-and-publish:
     name: Build and publish
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
+    - name: git fetch --tags
     - uses: actions/setup-python@v5
       with:
         python-version: ${{ inputs.python-version }}

.github/workflows/python-test-build.yaml

@@ -4,18 +4,19 @@ on:
       requirements_file:
         type: "string"
         required: false
-        default: "setup.cfg"
+        default: "pyproject.toml"
       python-version:
         type: "string"
         required: false
-        default: "3.11"
+        default: "3.12"
 
 jobs:
   build-and-check:
     name: Build and check package metadata
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
+    - name: git fetch --tags
     - uses: actions/setup-python@v5
       with:
         python-version: ${{ inputs.python-version }}