Define ruff version in the github actions file instead

Placing it in requirements.txt means the docker images try to install it
even though they don't need it.

.github/workflows/python-app.yml

@@ -9,6 +9,9 @@ on:
  pull_request:
  branches: [ main ]
 
+env:
+ RUFF_VERSION: 0.3.4
+
 jobs:
  build-baseline:
  runs-on: ubuntu-latest
@@ -32,7 +35,7 @@ jobs:
  # Use the system-provided python3 instead of actions/setup-python@v4
  python3 --version
  python3 -m pip install --upgrade pip
- python3 -m pip install --upgrade pre-commit
+ python3 -m pip install --upgrade pre-commit ruff==${{ env.RUFF_VERSION }}
  python3 -m pip install -r requirements.txt
  - name: Lint with flake8
  run: flake8
@@ -54,7 +57,7 @@ jobs:
  - name: Install dependencies
  run: |
  python -m pip install --upgrade pip
- pip install --upgrade pre-commit
+ pip install --upgrade pre-commit ruff==${{ env.RUFF_VERSION }}
  if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
  - name: Lint with flake8
  run: flake8

tests/requirements.txt

@@ -5,4 +5,3 @@ argcomplete>=2.0.0
 # Only needed for RISC-V FPGA boot -> not bundled
 pyserial>=3.5
 flake8
-ruff==0.3.4