Allow installing a specific ddev version

[jonaseberle]

Especially with things like upcoming breaking ddev release v1.19 I'd not like build pipelines to break.
So I would like to control which ddev version will be installed.

[hawkeyetwolf]

When installing via the install script, we can just pass the version we want to install, e.g.,:

inputs:
  version:
    description: "Override the DDEV version .e.g. '1.19.0'"
    required: false

# Download and run the DDEV installer
if [ "${{ inputs.version }}" != "" ]; then
  curl -LO https://raw.githubusercontent.com/drud/ddev/master/scripts/install_ddev.sh && bash install_ddev.sh v${{ inputs.version }}
else
  curl -LO https://raw.githubusercontent.com/drud/ddev/master/scripts/install_ddev.sh && bash install_ddev.sh
fi
rm -f install_ddev.sh

With the current implementation of installing via apt, I'm not sure the correct syntax, just figured I'd drop the snippet here in case it's useful :)

[deviantintegral]

This would be very helpful. I think it's also required for #7 to work fully.

[deviantintegral]

This would also be useful for situations like ddev/ddev#4614 where we may want to run HEAD in CI.

[jonaseberle]

We have moved to https://github.com/ddev/github-action-setup-ddev.
This repo will be archived (read-only). I am going to close all issues.