Context:
The description on how to run the upgrade as part of the Optimize startup uses the docker image specific `optimize.sh` script. This script however does not support to run the upgrade in Optimize 3.2.0, the `--upgrade` parameter is just ignored if used like this:

version: '2.4'

services:
  optimize:
    image: registry.camunda.cloud/optimize-ee/optimize:latest
    command: ["./optimize.sh", "--upgrade"]

AT:

• the optimize.sh script should call the `optimize-startup.sh` script and forward any additional parameters to it
• the 3.2.0 documentation is adjusted accordingly https://docs.camunda.org/optimize/3.2/technical-guide/update/ to point to the `optimize-startup.sh` script instead