Bump python-dotenv from 1.1.0 to 1.1.1 in /src

---
updated-dependencies:
- dependency-name: python-dotenv
  dependency-version: 1.1.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

src/requirements.txt

@@ -1,5 +1,5 @@
 python-telegram-bot[ext]==22.0
-python-dotenv==1.1.0
+python-dotenv==1.1.1
 yt-dlp==2025.6.30
 gallery-dl==1.29.6
 aiohttp==3.11.18