Upgrade: [dependabot] - bump actions/upload-artifact from 5.0.0 to 6.0.0

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 5.0.0 to 6.0.0.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@330a01c...b7c566a)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/docker_image_build.yml

@@ -31,7 +31,7 @@ jobs:
           docker build -t "cdk-utils-build:${VERSION_NUMBER}" -f docker/Dockerfile --build-arg VERSION="${VERSION_NUMBER}" .
           docker save "cdk-utils-build:${VERSION_NUMBER}" -o cdk-utils-build.img
 
-      - uses: actions/upload-artifact@330a01c490aca151604b8cf639adc76d48f6c5d4
+      - uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f
         name: Upload docker images
         with:
           name: docker_artifact

.github/workflows/package_npm_code.yml

@@ -60,7 +60,7 @@ jobs:
               run: |
                   make package
 
-            - uses: actions/upload-artifact@330a01c490aca151604b8cf639adc76d48f6c5d4
+            - uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f
               name: Upload packaged code
               with:
                   name: nhsdigital-eps-cdk-constructs-1.0.0.tgz