Merge pull request #9 from Fingertips/manfred-wowza-version-9

Lower the JDK version to 9

Author: Manfred

.github/workflows/build.yml

@@ -20,10 +20,10 @@ jobs:
         if: steps.cached-download.outputs.cache-hit != 'true'
         run: |
           curl -L -O "https://www.wowza.com/downloads/WowzaStreamingEngine-4-8-15+3/WowzaStreamingEngine-4.8.15+3-linux-x64-installer.run"
-      - name: Set up JDK 11
+      - name: Set up JDK 9
         uses: actions/setup-java@v3
         with:
-          java-version: '11'
+          java-version: '9'
           distribution: 'adopt'
       - run: sudo apt install -y expect
       - name: Prepare installer