Merge pull request #135 from jazzband/ci/devcontainers

ci: adds devcontainer

.devcontainer/devcontainer.json

@@ -0,0 +1,9 @@
+{
+  "image": "mcr.microsoft.com/devcontainers/base:focal",
+	"features": {
+		"ghcr.io/devcontainers/features/python:1": {
+			"version": "3.12",
+      "toolsToInstall": "poetry, pre-commit"
+		}
+	}
+}

.github/workflows/tests.yml

@@ -29,6 +29,6 @@ jobs:
           poetry run coverage run test.py
           poetry run coverage xml
       - name: 'Upload coverage to Codecov'
-        uses: codecov/codecov-action@v2
+        uses: codecov/codecov-action@v4
         with:
           fail_ci_if_error: false