Bump actions/download-artifact from 3 to 4

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

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

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

.github/workflows/js-ci.yml

@@ -201,7 +201,7 @@ jobs:
           working-directory: js
 
       - name: Download Keycloak server
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: keycloak
 
@@ -284,7 +284,7 @@ jobs:
         working-directory: js
 
       - name: Download Keycloak server
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: keycloak
 

.github/workflows/operator-ci.yml

@@ -76,7 +76,7 @@ jobs:
 
       - name: Download keycloak distribution
         id: download-keycloak-dist
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: keycloak-dist
           path: quarkus/container
@@ -121,7 +121,7 @@ jobs:
 
       - name: Download keycloak distribution
         id: download-keycloak-dist
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: keycloak-dist
           path: quarkus/container
@@ -177,7 +177,7 @@ jobs:
 
       - name: Download keycloak distribution
         id: download-keycloak-dist
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: keycloak-dist
           path: quarkus/container