uv/tests: update resolution-markers in conflict test
This change is correct because disjointness checks now
incorporate conflicts. In this case, there are actually
four forks. Two of them correspond to
`sys_platform == 'darwin'` and `sys_platform != 'darwin'`,
but neither of those contain `jinja2==3.1.3`. Instead,
they contain other versions of `jinja2` linked to other
extras.
If we ever add conflicts to our `resolution-markers` in
the lock file, then those forks should show up here
again. (Because, of course, some forks do contain
`jinja2==3.1.3` here.)
