build(deps): Bump actions/upload-artifact from 4 to 7

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 4 to 7.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v4...v7)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -52,14 +52,14 @@ jobs:
             --results-directory TestResults
 
       - name: Upload test results
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         if: always()
         with:
           name: unit-test-results
           path: TestResults/*.trx
 
       - name: Upload coverage
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: coverage-unit
           path: TestResults/**/coverage.cobertura.xml
@@ -114,7 +114,7 @@ jobs:
           ConnectionStrings__DefaultConnection: "Host=localhost;Port=5432;Database=integration_tests;Username=postgres;Password=postgres"
 
       - name: Upload test results
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         if: always()
         with:
           name: integration-test-results
@@ -154,7 +154,7 @@ jobs:
             --results-directory TestResults
 
       - name: Upload test results
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         if: always()
         with:
           name: acceptance-test-results