Bump jwcrypto from 1.4.2 to 1.5.1 in /src

Bumps [jwcrypto](https://github.com/latchset/jwcrypto) from 1.4.2 to 1.5.1.
- [Release notes](https://github.com/latchset/jwcrypto/releases)
- [Commits](latchset/jwcrypto@v1.4.2...v1.5.1)

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

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

src/requirements.txt

@@ -28,7 +28,7 @@ idna==3.4
 importlib-metadata==6.6.0
 itsdangerous==2.1.2
 Jinja2==3.1.2
-jwcrypto==1.4.2
+jwcrypto==1.5.1
 MarkupSafe==2.1.2
 outcome==1.2.0
 Pillow==10.0.1