Bump jwcrypto from 1.5.1 to 1.5.6

Bumps [jwcrypto](https://github.com/latchset/jwcrypto) from 1.5.1 to 1.5.6.
- [Release notes](https://github.com/latchset/jwcrypto/releases)
- [Commits](latchset/jwcrypto@v1.5.1...v1.5.6)

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

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

Author: dependabot[bot]

requirements.txt

@@ -2,4 +2,4 @@ Flask==2.3.2
 cryptography==42.0.4
 PyJWT==2.6.0
 url64==0.1.0
-jwcrypto==1.5.1
+jwcrypto==1.5.6