added some dependencise that were missing

.github/workflows/lint.yml

@@ -1,6 +1,10 @@
 name: Lint
 
-on: [push, pull_request]
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
 
 jobs:
   build:
@@ -15,7 +19,7 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install flake8 pytest pytest-cov
+          pip install flake8 pytest pytest-cov typer pytest-mock pydantic
       - name: Lint with flake8
         run: |
           # stop the build if there are Python syntax errors or undefined names