Bump idna from 3.6 to 3.7 in /app/backend (#1525)

Bumps [idna](https://github.com/kjd/idna) from 3.6 to 3.7.
- [Release notes](https://github.com/kjd/idna/releases)
- [Changelog](https://github.com/kjd/idna/blob/master/HISTORY.rst)
- [Commits](kjd/idna@v3.6...v3.7)

---
updated-dependencies:
- dependency-name: idna
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

app/backend/requirements.txt

@@ -125,7 +125,7 @@ hypercorn==0.16.0
     # via quart
 hyperframe==6.0.1
     # via h2
-idna==3.6
+idna==3.7
     # via
     #   anyio
     #   httpx
@@ -333,7 +333,9 @@ pydantic==2.6.3
 pydantic-core==2.16.3
     # via pydantic
 pyjwt[crypto]==2.8.0
-    # via msal
+    # via
+    #   msal
+    #   pyjwt
 pymupdf==1.23.26
     # via -r requirements.in
 pymupdfb==1.23.22