:Release Notes:
- Updated the Google Scholar crawler to automatically filter out results older than 5 years to ensure recent content.
:Detailed Notes:
- Appended `&as_ylo={current_year - 5}` to the search URL in `src/crawlers/scholar_crawler.py` by dynamically calculating the current year via Python's `datetime`.
- Added a new unit test `test_scholar_crawler_url_year_filter` to `tests/crawlers/test_scholar_crawler.py` to verify URL construction.
:Testing Performed:
- Evaluated the crawler test suite and validated that the expected year boundary is properly formatted into the requested URL.
- All 91 automated pytest cases complete successfully.
:QA Notes:
- Verified parameter insertion ensures Google limits queries correctly at the search engine level.
:Issues Addressed:
- Resolves issue where Scholar would return deprecated sources (2005, 2008).
Change-Id: I56ae2fd7369d61494d17520238c3ef66e14436c7
6d2ac9d0f0