build(deps): bump django from 4.2.14 to 5.0.7 in /backend (#2252)

* build(deps): bump django from 4.2.14 to 5.0.7 in /backend

Bumps [django](https://github.com/django/django) from 4.2.14 to 5.0.7.
- [Commits](https://github.com/django/django/compare/4.2.14...5.0.7)

---
updated-dependencies:
- dependency-name: django
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

* Upgrade Python version in the CI image

* Fix build of PyYAML in pre-commit dependency

* Fix pre-commit in CI

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Valentin Rigal <rigal@teklia.com>

.pre-commit-config.yaml

@@ -35,7 +35,7 @@ repos:
       - id: codespell
         exclude_types: [json]
   - repo: https://github.com/marco-c/taskcluster_yml_validator
-    rev: v0.0.9
+    rev: v0.0.11
     hooks:
       - id: taskcluster_yml
   - repo: https://github.com/asottile/yesqa

.taskcluster.yml

@@ -51,7 +51,7 @@ tasks:
     taskboot_image: "mozilla/taskboot:0.4.1"
 
     pip_install: "pip install --disable-pip-version-check --no-cache-dir --quiet"
-    python_version: "3.9"
+    python_version: "3.12"
 
     provisionerId:
       $if: 'taskcluster_root_url == "https://firefox-ci-tc.services.mozilla.com"'

backend/requirements.txt

@@ -1,6 +1,6 @@
 -e ../tools #egg=code-review-tools
 dj-database-url==2.2.0
-Django==4.2.14
+Django==5.0.7
 django-cors-headers==4.4.0
 djangorestframework==3.15.2
 dockerflow==2024.4.2

bot/tests/test_reporter_mail.py

@@ -30,7 +30,9 @@ This is the mock issue n°2
 
 This is the mock issue n°3
 
-This is the mock issue n°4"""
+This is the mock issue n°4
+"""
+
 
 MAIL_CONTENT_BUILD_ERRORS = """
 # [Code Review bot](https://github.com/mozilla/code-review) found 2 build errors on [D51](https://phabricator.test/D51)