Update to 2.3.3, bundler 1.13.6, rubygems 2.6.8

Author: docker-library-bot

2.3/Dockerfile

@@ -8,8 +8,8 @@ RUN mkdir -p /usr/local/etc \
 	} >> /usr/local/etc/gemrc
 
 ENV RUBY_MAJOR 2.3
-ENV RUBY_VERSION 2.3.2
-ENV RUBY_DOWNLOAD_SHA256 8d7f6ca0f16d77e3d242b24da38985b7539f58dc0da177ec633a83d0c8f5b197
+ENV RUBY_VERSION 2.3.3
+ENV RUBY_DOWNLOAD_SHA256 241408c8c555b258846368830a06146e4849a1d58dcaf6b14a3b6a73058115b7
 ENV RUBYGEMS_VERSION 2.6.8
 
 # some of ruby's build scripts are written in ruby

2.3/alpine/Dockerfile

@@ -8,8 +8,8 @@ RUN mkdir -p /usr/local/etc \
 	} >> /usr/local/etc/gemrc
 
 ENV RUBY_MAJOR 2.3
-ENV RUBY_VERSION 2.3.2
-ENV RUBY_DOWNLOAD_SHA256 8d7f6ca0f16d77e3d242b24da38985b7539f58dc0da177ec633a83d0c8f5b197
+ENV RUBY_VERSION 2.3.3
+ENV RUBY_DOWNLOAD_SHA256 241408c8c555b258846368830a06146e4849a1d58dcaf6b14a3b6a73058115b7
 ENV RUBYGEMS_VERSION 2.6.8
 
 # some of ruby's build scripts are written in ruby

2.3/slim/Dockerfile

@@ -20,8 +20,8 @@ RUN mkdir -p /usr/local/etc \
 	} >> /usr/local/etc/gemrc
 
 ENV RUBY_MAJOR 2.3
-ENV RUBY_VERSION 2.3.2
-ENV RUBY_DOWNLOAD_SHA256 8d7f6ca0f16d77e3d242b24da38985b7539f58dc0da177ec633a83d0c8f5b197
+ENV RUBY_VERSION 2.3.3
+ENV RUBY_DOWNLOAD_SHA256 241408c8c555b258846368830a06146e4849a1d58dcaf6b14a3b6a73058115b7
 ENV RUBYGEMS_VERSION 2.6.8
 
 # some of ruby's build scripts are written in ruby