🌱 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] <[email protected]>

Author: dependabot[bot]

.github/workflows/ci.yaml

@@ -165,7 +165,7 @@ jobs:
         run: make release
 
       - name: Upload artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: release-manifests
           path: out/release
@@ -210,7 +210,7 @@ jobs:
         run: ./scripts/ci-e2e-capi-quickstart.sh
 
       - name: Upload artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         if: ${{ always() }}
         with:
           name: e2e-quickstart
@@ -256,7 +256,7 @@ jobs:
         run: ./scripts/ci-e2e-capi.sh
 
       - name: Upload artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         if: ${{ always() }}
         with:
           name: e2e
@@ -302,7 +302,7 @@ jobs:
         run: ./scripts/ci-e2e-capi-conformance.sh
 
       - name: Upload artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         if: ${{ always() }}
         with:
           name: e2e-conformance
@@ -348,7 +348,7 @@ jobs:
         run: ./scripts/ci-e2e-capi-workload-upgrade.sh
 
       - name: Upload artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         if: ${{ always() }}
         with:
           name: e2e-workload-upgrade