aider: Added step to install "universal ctags" before installing Python dependencies.

# Context:
USER: i need to install the "universal ctags" binary in ubuntu before i run tests
ASSISTANT: To install the "universal ctags" binary in Ubuntu before running tests, you can add a new step in the `.github/workflows/python-tests.yml` file.

```yaml
.github/workflows/python-tests.yml
<<<<<<< ORIGINAL
    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install -r requirements.txt
=======
    - name: Install universal ctags
      run: |
        sudo apt-get update
        sudo apt-get install -y universal-ctags

    - name: Install dependencies
      run: |
        python
^C KeyboardInterrupt
USER: sorry, do that again
ASSISTANT: Sure, here's the updated step to install "universal ctags" in the `.github/workflows/python-tests.yml` file.

```yaml
.github/workflows/python-tests.yml
<<<<<<< ORIGINAL
    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install -r requirements.txt
=======
    - name: Install universal ctags
      run: |
        sudo apt-get update
        sudo apt-get install -y universal-ctags

    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install -r requirements.txt
>>>>>>> UPDATED
```

This change adds a new step to install "universal ctags" before installing the Python dependencies.

.github/workflows/python-tests.yml

@@ -24,6 +24,11 @@ jobs:
       with:
         python-version: ${{ matrix.python-version }}
 
+    - name: Install universal ctags
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y universal-ctags
+
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip