Fix GitHub lint workflow issues

- fix line too long in src/arguments.py
- install required dependencies in workflow

.github/workflows/lint.yml

@@ -22,6 +22,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
+        pip install .
         pip install black pylint
     - name: Analyse the code with black
       run: |

src/arguments.py

@@ -39,7 +39,8 @@ class OutputArgs:
     - write_to_csv:       True if output should be written to csv
     - write_to_excel:     True if output should be written to excel
     - write_full_dataset: True if the full dataset should be written to output
-    - write_bf:           True if subsets based on binding+functional data should be written to output
+    - write_bf:           True if subsets based on binding+functional data \
+                            should be written to output
     - write_b:            True if subsets based on binding data only should be written to output
     """