Dockerfile in aws_recon-0.5.6 vs Dockerfile in aws_recon-0.5.7

@@ -1,5 +1,5 @@
-ARG RUBY_VERSION=2.6.6
+ARG RUBY_VERSION=2.7.3
 FROM ruby:${RUBY_VERSION}-alpine
 
 LABEL maintainer="Darkbit <[e-mail]>"
 
 # Supply AWS Recon version at build time