Bump actions/upload-artifact from 5 to 6

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 5 to 6.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v5...v6)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/base-deploy.yml

@@ -154,7 +154,7 @@ jobs:
               --region eu-west-2
 
         - name: "Upload lambda artifact for the current workflow"
-          uses: actions/upload-artifact@v5
+          uses: actions/upload-artifact@v6
           with:
             name: lambda-${{ needs.metadata.outputs.tag }}
             path: ./dist/lambda.zip

.github/workflows/cicd-2-publish.yaml

@@ -82,7 +82,7 @@ jobs:
           make build
 
       - name: "Upload lambda artefact for cross-workflow use"
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: lambda-${{ needs.metadata.outputs.version }}
           path: dist/lambda.zip

.github/workflows/monthly-capacity-report.yml

@@ -55,7 +55,7 @@ jobs:
           AWS_REGION: eu-west-2
 
       - name: Upload dashboard export
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: dashboard-${{ matrix.env_config.name }}
           path: dashboard_exports/**/*
@@ -85,7 +85,7 @@ jobs:
         run: python3 scripts/generate_dashboard_report.py --input dashboard_exports
 
       - name: Upload report as artifact
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: capacity-report
           path: |

.github/workflows/sonarcube-scan-main-branch.yaml

@@ -28,7 +28,7 @@ jobs:
         run: |
           make test-unit
       - name: "Save the coverage check result"
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: coverage.xml
           path: coverage.xml

.github/workflows/stage-2-test.yaml

@@ -48,7 +48,7 @@ jobs:
         run: |
           make test-unit
       - name: "Save the coverage check result"
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: coverage.xml
           path: coverage.xml

.github/workflows/stage-3-build.yaml

@@ -49,7 +49,7 @@ jobs:
           make dependencies install-python
           make build
       - name: "Upload lambda artefact"
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: lambda
           path: dist/lambda.zip

.github/workflows/stage-4-acceptance.yaml

@@ -132,7 +132,7 @@ jobs:
           echo "Nothing to save"
       - name: Upload Integration Test Results
         if: always()
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: integration-test-results
           path: integration-test-results.xml