Add github actions

.github/pull_request_template.md

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+## Purpose
+_Why does this exist?_
+
+#### Checklist
+- [ ] Added or updated unit tests
+- [ ] Added to release notes
+- [ ] Updated readme/documentation (if necessary)

.github/workflows/test.yaml

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+name: Continuous integration
+on:
+  push:
+    branches: ["*"]
+    tags: ["v*"]
+  pull_request:
+    branches: ["main"]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.11", "3.12"]
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python-version }}
+      - uses: abatilo/[email protected]
+        with:
+          poetry-version: "1.4.2"
+      - name: Install dependancies
+        run: |
+          poetry install
+      - name: Lint
+        run: |
+          poetry run ruff format --check
+          poetry run ruff check
+      - name: Test
+        run: poetry run pytest
+
+  docker-image:
+    needs: [test]
+    if: ${{ github.event_name != 'pull_request' }}
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: docker/setup-buildx-action@v2
+      - uses: docker/metadata-action@v4
+        id: meta
+        with:
+          images: |
+            ghcr.io/${{ github.repository }}
+          tags: |
+            type=semver,pattern={{version}}
+            type=sha,prefix={{branch}}-,enable=${{ github.ref_type != 'tag' }}
+      - uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - uses: docker/build-push-action@v4
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}