Bump checkstyle 9.2 (#36)

* Bumping checkstyle to 9.2

* Bump java version for Dockerfile to 8u275

Version of openjdk-jre available for alpine-3.10 is 8.275.01-r0. See
https://pkgs.alpinelinux.org/packages?name=openjdk8-jre&branch=v3.10

* Replace deprecated MAINTAINER in Dockerfile

MAINTAINER is deprecated, replaced with using LABEL. See
https://docs.docker.com/engine/reference/builder/#maintainer-deprecated

* Updated docs using scrape-docs

* Update config for new version of CheckStyle

scope was changed to accessModifiers in Checkstyle 8.42. See
https://checkstyle.sourceforge.io/releasenotes.html#Release_8.42 and
checkstyle/checkstyle#7417

Author: dachucky

CHECKSTYLE_VERSION

@@ -1 +1 @@
-8.39
+9.2

Dockerfile

@@ -2,7 +2,7 @@ FROM ruby:2.6.3-alpine
 
 ENV LANG C.UTF-8
 
-MAINTAINER "Code Climate <hello@codeclimate.com>"
+LABEL org.opencontainers.image.authors="Code Climate <hello@codeclimate.com>"
 
 RUN adduser -u 9000 -D app
 
@@ -19,8 +19,8 @@ RUN { \
 ENV JAVA_HOME /usr/lib/jvm/java-1.8-openjdk/jre
 ENV PATH $PATH:/usr/lib/jvm/java-1.8-openjdk/jre/bin:/usr/lib/jvm/java-1.8-openjdk/bin
 
-ENV JAVA_VERSION 8u252
-ENV JAVA_ALPINE_VERSION 8.252.09-r0
+ENV JAVA_VERSION 8u275
+ENV JAVA_ALPINE_VERSION 8.275.01-r0
 
 RUN set -x \
 	&& apk update && apk add --no-cache --update \

bin/install-checkstyle.sh

@@ -1,7 +1,7 @@
 #!/bin/sh
 
 # use `make upgrade` to update this URL to the latest version
-URL='https://github.com/checkstyle/checkstyle/releases/download/checkstyle-8.39/checkstyle-8.39-all.jar'
+URL='https://github.com/checkstyle/checkstyle/releases/download/checkstyle-9.2/checkstyle-9.2-all.jar'
 
 
 wget -O /usr/local/bin/checkstyle.jar $URL