Match components using path prefixes, not string prefixes.

[charypar]

When filtering changed files to components (

monobuild/manifests/manifests.go

Line 144 in 104deb9

if strings.HasPrefix(change, component) {

) the paths are matched on a sub-string. This sometimes mismatches components if they share a common sub-string (e.g. my-component and my-component-v2).

The correct way is to split the path to individual segments and look for a sub-list.

This is also the cause of issue fixed by #18.