Improve ci workflows

.github/workflows/lint.yml

@@ -0,0 +1,30 @@
+name: Makefile CI
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+  workflow_dispatch:
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.x"
+
+      - name: Install flake8
+        run: |
+          python -m pip install --upgrade pip
+          pip install flake8
+
+      - name: Run flake8 lint
+        run: |
+          # Lint the Python code in src/ and tests/
+          flake8 src/

.github/workflows/makefile.yml

@@ -5,6 +5,7 @@ on:
     branches: [ "main" ]
   pull_request:
     branches: [ "main" ]
+  workflow_dispatch:
 
 jobs:
   build:
@@ -16,4 +17,3 @@ jobs:
 
     - name: Install dependencies
       run: make
-

requirements.txt

@@ -22,4 +22,4 @@ torchvision
 keras-preprocessing
 plotly
 tensorflow
-keras==2.15.0
+keras