set FORK_NAME to REPOSITORY_NAME by default

Author: maxknv

ci/praktika/_environment.py

@@ -56,7 +56,7 @@ def from_env(cls) -> "_Environment":
         RUN_URL = f"https://github.com/{REPOSITORY}/actions/runs/{RUN_ID}"
         BASE_BRANCH = os.getenv("GITHUB_BASE_REF", "")
         USER_LOGIN = ""
-        FORK_NAME = ""
+        FORK_NAME = REPOSITORY
         PR_BODY = ""
         PR_TITLE = ""
         PR_LABELS = []