Bump pyjwt from 2.11.0 to 2.12.0 in /lambdas/backend

Bumps [pyjwt](https://github.com/jpadilla/pyjwt) from 2.11.0 to 2.12.0.
- [Release notes](https://github.com/jpadilla/pyjwt/releases)
- [Changelog](https://github.com/jpadilla/pyjwt/blob/master/CHANGELOG.rst)
- [Commits](jpadilla/pyjwt@2.11.0...2.12.0)

---
updated-dependencies:
- dependency-name: pyjwt
  dependency-version: 2.12.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

lambdas/backend/poetry.lock

@@ -20,7 +20,7 @@ moto                    = "^5.1.20"
 requests                = "~2.32.5"
 responses               = "~0.25.7"
 pydantic                = "~1.10.13"
-pyjwt                   = {extras = ["crypto"], version = "^2.11.0"}
+pyjwt                   = {extras = ["crypto"], version = "^2.12.0"}
 jsonpath-ng             = "^1.6.0"
 simplejson              = "^3.20.2"
 structlog               = "^24.1.0"