Bump actions/checkout from 3 to 4

Bumps [actions/checkout](https://github.com/actions/checkout) from 3 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v3...v4)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/codecov.yaml

@@ -15,6 +15,6 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v3    
+    - uses: actions/checkout@v4    
     - name: Upload coverage reports to Codecov
       uses: codecov/codecov-action@v3

.github/workflows/python-app.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python 3.11
       uses: actions/setup-python@v4
       with:

.github/workflows/static.yml

@@ -29,7 +29,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Setup Pages
         uses: actions/configure-pages@v3
       - name: Upload artifact

requirements.txt

@@ -4,5 +4,4 @@ discord.py==2.2.2
 emoji==2.2.0
 prettytable==3.6.0
 psutil==5.9.4
-requests==2.32.4
-urllib3>=2.5.0 # not directly required, pinned by Snyk to avoid a vulnerability
+requests==2.28.2