chore(deps): bump actions/checkout from 3 to 4 (#134)

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](actions/checkout@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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/integration-gateway.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: self-hosted
     container: python:3.11-bookworm
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: ./.github/actions/setup-poetry
 
@@ -34,7 +34,7 @@ jobs:
     runs-on: self-hosted
     container: python:3.11-bookworm
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: ./.github/actions/setup-poetry
 
@@ -59,7 +59,7 @@ jobs:
     continue-on-error: true
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: ./.github/actions/setup-poetry
 

.github/workflows/pytest-integration.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: self-hosted
     container: python:3.11-bookworm
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: ./.github/actions/setup-poetry
 

.github/workflows/pytest.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: self-hosted
     container: python:3.11-bookworm
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: ./.github/actions/setup-poetry
 

.github/workflows/python-publish.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: self-hosted
     container: python:3.11-bookworm
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: snok/install-poetry@v1
         with: