Keda: Update .devcontainer config to comply with the latest changes

[zroubalik]

We have introduced changes in the project layout etc. with the update to Operator SDK v1.0.0 #1007

It is needed update .devcontainer config, Dockerfile: https://github.com/kedacore/keda/tree/v2/.devcontainer

[zroubalik]

@kashifsoofi expressed an interest in covering this issue, thx

[girishramnani]

@zroubalik is this issue taken? if not, I would like to work on this.

[zroubalik]

@girishramnani a couple months ago @kashifsoofi mentioned, that he would like to contribute this, but haven't heard from him since then. Would be great if you can take this :)

[girishramnani]

understood, moving forward on this.

[kashifsoofi]

thanks @girishramnani all yours, apologies guys i should have left comment on issue earlier, i did 1 pr to update, not sure if it covered everything required

[zroubalik]

Ouch, sorry for the confusion guys! @kashifsoofi I can see your PR now, I forgot about it completely, sorry.

Is everything solved then and we can close this issue?

PR for reference: https://github.com/kedacore/keda/pull/1140

[kashifsoofi]

Let @girishramnani have a look, there might be something missing.

[girishramnani]

Sure, I will play around with it quickly and get back with my findings.

[girishramnani]

noticed a small nit that the devcontainer.json was using ms-vscode.go for the golang plugin extension id instead of google.go so updated that as part of the https://github.com/kedacore/keda/pull/1334