Fixed the make-devenv.sh script

[debasishbsws]

Fixes #605

Maybe for some recent changes in apko this script was not working.

What I did:

1. in the previous alpine:3.16.0 when we try apk add go it is getting the go-1.19.2 version but in order to run apko we need go-1.21.*. As I found it in the edge repository, So I have updated the BUILDER_ALPINE_TAG.
2. Currently due to multi-architecture build all the image that we create, the arch name is appended into the image tag. And there is no image with the name apko-inception:latest. And for dev-env it is unnecessary to build for all the architecture.

• Identify the current host architecture. and build only for that.
• Replace the Image name with the proper one.

[Elizafox]

LGTM 👍