Bigbang upgrade breaks sonarqube

for https://repo1.dso.mil/platform-one/big-bang/bigbang/-/issues/806

Changes to bump up default memory requirements.

values can now be changed by helm overrides. e.g.:

addons:
  sonarqube:
    values:
      caCerts:
        image: adoptopenjdk/openjdk11:alpine
        secret: my-secret
        command: ["sh"]
        args: ["-c", "cp -f \"${JAVA_HOME}/lib/security/cacerts\" /tmp/certs/cacerts; chmod 777 /tmp/certs/cacerts; if [ \"$(ls /tmp/secrets/ca-certs)\" ]; then for f in /tmp/secrets/ca-certs/*; do keytool -importcert -file \"${f}\" -alias \"$(basename \"${f}\")\" -keystore /tmp/certs/cacerts -storepass changeit -trustcacerts -noprompt; done; fi"]

if command or args are not set, the default values are used.