Update dependabot.yml

Author: dhilpipre

.github/workflows/dependabot.yml

@@ -14,6 +14,7 @@ jobs:
       uses: actions/setup-java@v1
       with:
           java-version: 9
+          distribution: 'temurin'
     - name: Setup libraries
       run: | 
           ./newrelic-dependencies.sh