Update gradle Docker tag to v7

renovate-bot · renovate-bot · commit 54d6ccbd2fd8 · 2021-12-16T22:01:06.000Z
diff --git a/Dockerfile b/Dockerfile
@@ -1,4 +1,4 @@
-FROM gradle:6.0-jdk8 as builder
+FROM gradle:7.3-jdk8 as builder
 WORKDIR /workspace
 COPY / /workspace/
 RUN gradle build
