Bug: floats with only 0 as decimal places are converted to integer

[RafaelKr]

In the Shopware development template I want to explicitly use the docker image webdevops/php-apache-dev:8.0. For this I tried to use the following configuration:

const:
  DOCKER_IMAGE_PHP: webdevops/php-apache-dev
  DOCKER_IMAGE_PHP_VERSION: 8.0

If I do so, docker will try to pull webdevops/php-apache-dev:8 (note the missing .0) which is not available on dockerhub. I got a workaround by wrapping it in quotes which works fine on Linux:

const:
  DOCKER_IMAGE_PHP: webdevops/php-apache-dev
  DOCKER_IMAGE_PHP_VERSION: "8.0"

Today we tried to set it up on a MacBook of a colleague, although it's wrapped with quotes it will still convert it to an integer and therefore try to pull that non-existent image tag. We tried to escape them with the following options which all didn't work. They all were put into the docker-compose.override.yml literally:

\"8.0\"
8\.0
8.0 !!float

We also tried it with single quotes ('8.0') which led to the same result as double quotes.

For now we just use 8.1 on macOS which works fine. Is there a solution to this or is this something which has to be adjusted in the psh code?