Update Double Down to 1.1.0

[ahnaf-tahmid-chowdhury]

Update Double Down to 1.1.0

Please note: This PR sets DOUBLE_DOWN=ON by default

[gonuke]

I don't think this has all the logic quite right for when we use double_down_version and when we use double_down.

Perhaps contrary to some previous advice, I think we need to pass both as build-args. One let's us update and test newer versions of Double Down and one lets us decide whether to build with it or not. I think we may have also decided to always test/build with DD now.

[ahnaf-tahmid-chowdhury]

Should I follow this PR or close this one as I think I am working on PR #929? As you have mentioned to do the both test, I say, according to the current stage of the PR #929, we can do the build both just adding a single word to the Docker build workflow:

matrix:
    double_down_version : [
        off, 
        v1.1.0
    ]

[gonuke]

I forgot about #929 and agree that maybe we should close/withdraw this PR.