ci: Stabilize CI dependency cache key #13401
Merged
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Ensure it only changes if actual dependencies change.
Previously, we would invalidate the dependency cache every time a package.json of the workspace changed in any way. This is defensive, but it also means that we also invalidate if one of these things happen:
This change updates this to calculate the hash with a slightly more sophisticated approach, which should hopefully ensure we only actually bust the cache when a dependency actually changes. This should lead to the dependency cache being re-used much more, because only rarely is an actual dependency changed.