Fix JVM version in Docker build

Author: michaelmior

.github/workflows/docker.yml

@@ -24,7 +24,7 @@ jobs:
       run:  echo "SOURCE_DATE_EPOCH=$(date -d $(parse-changelog CHANGELOG.md -t | rev | cut -d' ' -f1 | rev) '+%s')" >> "$GITHUB_ENV"
     - uses: coursier/setup-action@v1
       with:
-        jvm: adopt:8
+        jvm: zulu:11.0.10
         apps: sbt scala
     - name: Compile and prepare Docker configuration
       run: sbt Docker/stage