Update GitHub Artifact Actions to v4 (#63)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/maven-service-build.yml

@@ -64,7 +64,7 @@ jobs:
         run: |
           wget https://github.com/aquasecurity/trivy/releases/download/v0.39.1/trivy_0.39.1_Linux-64bit.deb
           sudo dpkg -i trivy_0.39.1_Linux-64bit.deb
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
         with:
           name: bom.json
       - name: Run Trivy with SBOM

.github/workflows/maven-swag-deploy.yml

@@ -52,7 +52,7 @@ jobs:
         run: npm run validate
 
       - name: Upload specification bundle
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: spec-bundle
           path: ${{ inputs.dist-directory }}
@@ -69,7 +69,7 @@ jobs:
           fetch-depth: 0
 
       - name: Download specification bundle
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: spec-bundle
           path: ${{ inputs.dist-directory }}
@@ -103,7 +103,7 @@ jobs:
           fetch-depth: 0
 
       - name: Download specification bundle
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: spec-bundle
           path: ${{ inputs.dist-directory }}