update GitHub Actions workflow: adjust upstream repository configuration and simplify PR title validation

Author: allnes

.github/scripts/validate_pr.py

@@ -13,7 +13,6 @@
 
 from __future__ import annotations
 
-import argparse
 import json
 import os
 import re
@@ -55,12 +54,8 @@ def validate_title(title: str) -> List[str]:
     if re.match(TITLE_TASK_REGEX, title, flags=re.UNICODE | re.VERBOSE):
         return []
 
-    example_task_ru = (
-        "[TASK] 2-12. Иванов Иван Иванович. 2341-а234. Вычисление суммы элементов вектора."
-    )
-    example_task_en = (
-        "[TASK] 2-12. Ivanov Ivan Ivanovich. 2341-a234. Vector elements sum calculation."
-    )
+    example_task_ru = "[TASK] 2-12. Иванов Иван Иванович. 2341-а234. Вычисление суммы элементов вектора."
+    example_task_en = "[TASK] 2-12. Ivanov Ivan Ivanovich. 2341-a234. Vector elements sum calculation."
     example_dev = "[DEV] Update docs for lab 2"
     return [
         "Invalid PR title.",

.github/workflows/pre-commit.yml

@@ -26,6 +26,6 @@ jobs:
           git config --global --add safe.directory '*'
       - name: Run pre-commit checks
         run: |
-          FROM_REF="${{ github.base_ref || 'HEAD~1' }}"
-          git fetch origin $FROM_REF:$FROM_REF || true
-          pre-commit run --from-ref $FROM_REF --to-ref HEAD
+          git remote add upstream https://github.com/learning-process/parallel_programming_course.git || true
+          git fetch --no-tags upstream master:upstream/master
+          pre-commit run --from-ref upstream/master --to-ref HEAD