Bump actions/upload-artifact from 3 to 4

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 3 to 4.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v3...v4)

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

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

.github/workflows/codecov.yml

@@ -22,13 +22,13 @@ jobs:
       - name: Upload coverage reports to Codecov
         uses: codecov/codecov-action@v3
       - name: Upload test report
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           path: build/reports/tests/test/
           name: Test Report
           retention-days: 14
       - name: Upload coverage report
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           path: build/reports/jacoco/test/
           name: Coverage Report

.github/workflows/gradle.yml

@@ -26,7 +26,7 @@ jobs:
         uses: gradle/gradle-build-action@v2.9.0
         with:
           arguments: build
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           name: Armour-and-Tools-Mod
           path: build/libs