update buildkit version used for earthly v0.6.0

[alexcb]

This sets us to use https://github.com/earthly/buildkit/tree/version-for-earthly-v0.6

Signed-off-by: Alex Couture-Beil alex@earthly.dev

[alexcb]

This only introduces the change where we force the lazyCacheManager to wait:

git log b18e94b75d79364f37a8c27bf6017856d8e20b28..5ee328821a2b2b3cbb84ef6290ba8d1abc910e44
commit 5ee328821a2b2b3cbb84ef6290ba8d1abc910e44 (HEAD -> version-for-earthly-v0.6, earthly/version-for-earthly-v0.6, earthly/acb/rollback-to-f4a607654bbbf4a1eae568d20fddb1f7f7acbf6c-with-kind-fix-and-with-lazy-cache-manager-wait-hack, acb/rollback-to-f4a607654bbbf4a1eae568d20fddb1f7f7acbf6c-with-kind-fix-and-with-lazy-cache-manager-wait-hack, acb/rollback-to-f4a607654bbbf4a1eae568d20fddb1f7f7acbf6c-with-kind-fix)
Author: Alex Couture-Beil <alex@earthly.dev>
Date:   Fri Nov 19 17:29:56 2021 -0800

    force lazyCacheManager.wait to ensure session is active
    
    The lazyCacheManager will sometimes resolve the docker registry
    credentials after the session has been closed; this forces the
    credential resolution to occure while Solve() is still active.
    
    Signed-off-by: Alex Couture-Beil <alex@earthly.dev>

[andrewsykim]

Non-blocking comment: if we're cutting a branch in buildkit can we name it something like earthly-v0.6 or just v0.6? Just a little bit cleaner and easier to find

[alexcb]

can we name it something like earthly-v0.6 or just v0.6? Just a little bit cleaner and easier to find

earthly-v0.6 sounds good; I was uneasy about calling it v0.6 as it might be confusing about it being buildkit v0.6 vs buildkit-for-v0.6-of-earthly.

[alexcb]

Here's the rename of the branch https://github.com/earthly/buildkit/tree/earthly-v0.6