Fix: import error on build run

Author: dhruvmanila

scripts/validate_solutions.py

@@ -6,9 +6,13 @@
 from types import ModuleType
 from typing import Dict, List
 
-import github
 import pytest
 
+try:
+    import github
+except ImportError:
+    pass
+
 PROJECT_EULER_DIR_PATH = pathlib.Path.cwd().joinpath("project_euler")
 PROJECT_EULER_ANSWERS_PATH = pathlib.Path.cwd().joinpath(
     "scripts", "project_euler_answers.json"
@@ -82,7 +86,7 @@ def collect_solution_file_paths() -> List[pathlib.Path]:
     collect_solution_file_paths(),
     ids=lambda path: f"{path.parent.name}/{path.name}",
 )
-def test_project_euler(solution_path: pathlib.Path):
+def test_project_euler(solution_path: pathlib.Path) -> None:
     """Testing for all Project Euler solutions"""
     # problem_[extract this part] and pad it with zeroes for width 3
     problem_number: str = solution_path.parent.name[8:].zfill(3)