Land #11572, bump to Ruby 2.6.2

.ruby-version

@@ -1 +1 @@
-2.6.1
+2.6.2

.travis.yml

@@ -13,8 +13,8 @@ language: ruby
 rvm:
   - '2.3.8'
   - '2.4.5'
-  - '2.5.3'
-  - '2.6.1'
+  - '2.5.5'
+  - '2.6.2'
 
 env:
   - CMD='bundle exec rake rspec-rerun:spec SPEC_OPTS="--tag content"'

Dockerfile

@@ -1,4 +1,4 @@
-FROM ruby:2.6.1-alpine3.9 AS builder
+FROM ruby:2.6.2-alpine3.9 AS builder
 LABEL maintainer="Rapid7"
 
 ARG BUNDLER_ARGS="--jobs=8 --without development test coverage"
@@ -36,7 +36,7 @@ RUN apk add --no-cache \
     && chmod -R a+r /usr/local/bundle
 
 
-FROM ruby:2.6.1-alpine3.9
+FROM ruby:2.6.2-alpine3.9
 LABEL maintainer="Rapid7"
 
 ENV APP_HOME=/usr/src/metasploit-framework