JSON -> errorformat text -> dog

Rather than magical text formatting.

assets/reviewdog/reviewdog.yml

@@ -46,11 +46,9 @@ runner:
     cmd: |
       [ -f "$(find $SCRIPTPATH -type f -size +0 -name all_changed_files.txt)" ] &&\
       cat $SCRIPTPATH/all_changed_files.txt | grep -q '\.rb$' &&\
-      brakeman --quiet --no-exit-on-warn --no-exit-on-error --force --format text --text-fields file,line,message,link \
-      | grep '^\(File\|Line\|Message\|Link\): ' -A1 \
-      | tr '\n' '\1' \
-      | sed -e 's/\x01\x01/\n/g' -e 's/\x01/~~~/g' -e 's/~~~Link:/<br><br>/g' \
+      brakeman --quiet --no-exit-on-warn --no-exit-on-error --force --format json \
+      | jq -r '.warnings[] | "\(.confidence[0:1]):\(.message)<br><br>Source: \(.link)"' \
       | sed "s/$/<br><br>Cc @brave\/sec-team $ASSIGNEES/g" \
       || true
     errorformat:
-      - "File: %f~~~Line: %l~~~Message: %m"
+      - "%t:%f:%l %m"