statichttprepo: update profile of __call__ in mock vfs object
New code paths could fail because the old statichttprepo profile couldn't
handle the usual parameters.
Instead, reuse a more generic profile also used in readonlyvfs.
requesting all changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 4 changes to 4 files
updating to branch default
4 files updated, 0 files merged, 0 files removed, 0 files unresolved
requesting all changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 4 changes to 4 files
updating to branch default
4 files updated, 0 files merged, 0 files removed, 0 files unresolved