Update checkstyle to 9.3
authorFelix Schumacher <felix.schumacher@internetallee.de>
Sat, 5 Mar 2022 15:07:13 +0000 (16:07 +0100)
committerFelix Schumacher <felix.schumacher@internetallee.de>
Sat, 5 Mar 2022 15:07:13 +0000 (16:07 +0100)
commit0b34b4054a9674b6b37dc73f068421ebeda69235
tree519ee7d9dd0886c9dc44f4db90e34bca1bd797da
parentc8a47113d5316ca5d835c102abb650523ae4e16d
Update checkstyle to 9.3

The 10.x branch is Java 11 and higher, only.
Suppress UnnecessaryParentheses for now, as we have quite a few of those and
it seems to be  new check.
checksum.xml
config/checkstyle/checkstyle-suppressions.xml
gradle.properties