Use uv run with dev dependency for Python CI tests

Add `requests` as an optional dev dependency in pyproject.toml and switch
the CI workflow to use `uv run --extra dev` instead of manually installing
packages via `uv pip install --system`.

Co-Authored-By: HAL 9000

Author: tnull

.github/workflows/python.yml

@@ -26,9 +26,6 @@ jobs:
       - name: Start bitcoind and electrs
         run: docker compose up -d
 
-      - name: Install testing prerequisites
-        run: uv pip install --system requests
-
       - name: Run Python unit tests
         env:
           BITCOIN_CLI_BIN: "docker exec ldk-node-bitcoin-1 bitcoin-cli"
@@ -37,4 +34,4 @@ jobs:
           ESPLORA_ENDPOINT: "http://127.0.0.1:3002"
         run: |
           cd $LDK_NODE_PYTHON_DIR
-          python3 -m unittest discover -s src/ldk_node
+          uv run --group dev python -m unittest discover -s src/ldk_node

bindings/python/pyproject.toml

@@ -24,6 +24,9 @@ classifiers = [
 "Github" = "https://github.com/lightningdevkit/ldk-node"
 "Bug Tracker" = "https://github.com/lightningdevkit/ldk-node/issues"
 
+[dependency-groups]
+dev = ["requests"]
+
 [tool.hatch.build.targets.wheel]
 packages = ["src/ldk_node"]