add dtrace/systemtap dev tools and headers to images

It looks like alpine currently doesn't have dtrace/systemtap tools: https://github.com/alpinelinux/docker-alpine/issues/20

added 5 commits

• 35fd0b53...ffca647a - 4 commits from branch ghc:master
• 66f4ac21 - add dtrace/systemtap dev tools and headers to images

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approved this merge request

enabled an automatic merge when the pipeline for 66f4ac21 succeeds

merged

Thanks @bgamari :)