Update currencyconverter requirement in /telegram_bot

Updates the requirements on [currencyconverter](https://github.com/alexprengere/currencyconverter) to permit the latest version.
- [Release notes](https://github.com/alexprengere/currencyconverter/releases)
- [Commits](https://github.com/alexprengere/currencyconverter/compare/v0.16.12...v0.17.1)

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

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

telegram_bot/requirements.txt

@@ -8,4 +8,4 @@ croniter~=1.3.4
 tzlocal==2.1
 investpy~=1.0.8
 pandas~=1.4.1
-currencyconverter~=0.16.12
+currencyconverter~=0.17.1