build: Update GH actions versions, auto-close Central staging

Author: zml2008

.github/workflows/ci.yaml

@@ -24,8 +24,9 @@ jobs:
       - name: Check out
         uses: actions/checkout@v2
       - name: Setup JDK 11
-        uses: actions/setup-java@v1
+        uses: actions/setup-java@v2
         with:
+          distribution: adopt
           java-version: 11
       - name: Validate Gradle wrapper
         uses: gradle/wrapper-validation-action@v1
@@ -37,7 +38,7 @@ jobs:
         if: "${{ always() }}"
         uses: actions/upload-artifact@v2
         with:
-          name: test-results
+          name: "test-results-${{ matrix.os }}"
           path: |
             build/reports/
             */build/reports/
@@ -67,7 +68,7 @@ jobs:
           ORG_GRADLE_PROJECT_spongeSigningPassword: "${{ secrets.SPONGE_SIGNING_PASSWORD }}"
       - name: Publish with Gradle (release)
         if: "${{ runner.os == 'Linux' && env.STATUS == 'release' && github.event_name == 'release' }}"
-        run: ./gradlew publish
+        run: ./gradlew publish closeSonatypeStagingRepository
         env:
           ORG_GRADLE_PROJECT_githubPackagesUsername: "${{ github.actor }}"
           ORG_GRADLE_PROJECT_githubPackagesPassword: "${{ secrets.GITHUB_TOKEN }}"