Like python-wheel, typing-extensions caps its build backend at
"flit_core >=3.11,<4", so python-typing-extensions/host fails with
"Missing dependencies: flit_core<4,>=3.11" now that the feed ships
flit-core 4.0.2. flit_core 4 builds it unchanged; relax the upper bound.
Signed-off-by: Alexandru Ardelean <alex@shruggie.ro>
