fix: enable job-queue extra for welcome message auto-deletion

python-telegram-bot requires the [job-queue] extra to install APScheduler.
Without it, context.job_queue is None and welcome message deletion jobs
were silently never scheduled.

Author: 0xMett

pyproject.toml

@@ -6,7 +6,7 @@ readme = "README.md"
 requires-python = ">=3.14"
 license = { text = "MIT" }
 dependencies = [
-    "python-telegram-bot>=22.0",
+    "python-telegram-bot[job-queue]>=22.0",
     "python-dotenv>=1.0",
     "psycopg[binary,pool]>=3.2",
 ]