Werk #13898: Update stunnel to 5.63
| Component | Core & setup |
| Title | Update stunnel to 5.63 |
| Date | Apr 4, 2022 |
| Checkmk Edition | Checkmk Raw (CRE) |
| Checkmk Version | 2.0.0p23 2.1.0b5 2.2.0b1 |
| Level | Trivial Change |
| Class | Security Fix |
| Compatibility | Compatible - no manual interaction needed |
Update to the latest stunnel version 5.63
