dependabot: update openpyxl requirement from ~=3.1.2 to ~=3.1.4

Updates the requirements on [openpyxl](https://openpyxl.readthedocs.io) to permit the latest version.

---
updated-dependencies:
- dependency-name: openpyxl
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

requirements.txt

@@ -2,7 +2,7 @@ HTMLParser~=0.0.2
 beautifulsoup4~=4.12.3
 requests~=2.32.3
 aiohttp~=3.9.5
-openpyxl~=3.1.2
+openpyxl~=3.1.4
 pandas~=2.2.2
 tqdm~=4.66.4
 feedparser~=6.0.11