Bump django from 4.2.14 to 4.2.15 in /src/backend (#7827)

* Bump django from 4.2.14 to 4.2.15 in /src/backend

Bumps [django](https://github.com/django/django) from 4.2.14 to 4.2.15.
- [Commits](https://github.com/django/django/compare/4.2.14...4.2.15)

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

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

* fix formatting

* bump everywhere

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Matthias Mair <code@mjmair.com>

src/backend/requirements.txt

@@ -331,9 +331,9 @@ diff-match-patch==20230430 \
 dj-rest-auth==6.0.0 \
     --hash=sha256:760b45f3a07cd6182e6a20fe07d0c55230c5f950167df724d7914d0dd8c50133
     # via -r src/backend/requirements.in
-django==4.2.14 \
-    --hash=sha256:3ec32bc2c616ab02834b9cac93143a7dc1cdcd5b822d78ac95fc20a38c534240 \
-    --hash=sha256:fc6919875a6226c7ffcae1a7d51e0f2ceaf6f160393180818f6c95f51b1e7b96
+django==4.2.15 \
+    --hash=sha256:61ee4a130efb8c451ef3467c67ca99fdce400fedd768634efc86a68c18d80d30 \
+    --hash=sha256:c77f926b81129493961e19c0e02188f8d07c112a1162df69bfab178ae447f94a
     # via
     #   -r src/backend/requirements.in
     #   dj-rest-auth
@@ -1549,9 +1549,9 @@ sentry-sdk==2.8.0 \
     # via
     #   -r src/backend/requirements.in
     #   django-q-sentry
-setuptools==71.0.3 \
-    --hash=sha256:3d8531791a27056f4a38cd3e54084d8b1c4228ff9cf3f2d7dd075ec99f9fd70d \
-    --hash=sha256:f501b6e6db709818dc76882582d9c516bf3b67b948864c5fa1d1624c09a49207
+setuptools==72.1.0 \
+    --hash=sha256:5a03e1860cf56bb6ef48ce186b0e557fdba433237481a9a625176c2831be15d1 \
+    --hash=sha256:8d243eff56d095e5817f796ede6ae32941278f542e0f941867cc05ae52b162ec
     # via
     #   -r src/backend/requirements.in
     #   django-money