Changelog:
===========
-Fix a KeyError raised when resolving a URL dependency without package name given.
-pdm update --update-eager can hit InconsistentCandidate error when dependency
is included both through default dependencies and extra.
-pdm install should not warn when overwriting its own symlinks on install/update.
-Fix a bug that candidates without local version are rejected when the local
version is pinned.
-Add maturin as a compatible build backend in the docs.
Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
