ci: bump actions/upload-artifact from 4.5.0 to 4.6.0

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 4.5.0 to 4.6.0.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v4.5.0...v4.6.0)

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

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

Author: dependabot[bot]

.github/workflows/integration-tests-h2.yml

@@ -62,7 +62,7 @@ jobs:
         run: ./src/main/scripts/execute-command.sh integration-tests
       - name: Save RobotFramework reports
         if: ${{ failure() }}
-        uses: actions/upload-artifact@v4.5.0 # https://github.com/actions/upload-artifact
+        uses: actions/upload-artifact@v4.6.0 # https://github.com/actions/upload-artifact
         with:
           name: robotframework-reports
           path: target/robotframework-reports/

.github/workflows/integration-tests-mysql.yml

@@ -90,7 +90,7 @@ jobs:
           ./src/main/scripts/execute-command.sh integration-tests
       - name: Save RobotFramework reports
         if: ${{ failure() }}
-        uses: actions/upload-artifact@v4.5.0 # https://github.com/actions/upload-artifact
+        uses: actions/upload-artifact@v4.6.0 # https://github.com/actions/upload-artifact
         with:
           name: robotframework-reports
           path: target/robotframework-reports/

.github/workflows/integration-tests-postgres.yml

@@ -67,7 +67,7 @@ jobs:
         run: ./src/main/scripts/execute-command.sh integration-tests
       - name: Save RobotFramework reports
         if: ${{ failure() }}
-        uses: actions/upload-artifact@v4.5.0 # https://github.com/actions/upload-artifact
+        uses: actions/upload-artifact@v4.6.0 # https://github.com/actions/upload-artifact
         with:
           name: robotframework-reports
           path: target/robotframework-reports/