Update pypi_solver to use vendored poetry

conda_lock/pypi_solver.py

@@ -9,18 +9,23 @@
 from clikit.api.io.flags import VERY_VERBOSE
 from clikit.io import ConsoleIO, NullIO
 from packaging.tags import compatible_tags, cpython_tags
-from poetry.core.packages import Dependency, Package, ProjectPackage, URLDependency
-from poetry.factory import Factory
-from poetry.installation.chooser import Chooser
-from poetry.installation.operations.uninstall import Uninstall
-from poetry.puzzle import Solver
-from poetry.repositories.pool import Pool
-from poetry.repositories.pypi_repository import PyPiRepository
-from poetry.repositories.repository import Repository
-from poetry.utils.env import Env
 
 from conda_lock import src_parser
 from conda_lock.lookup import conda_name_to_pypi_name
+from conda_lock.vendor.poetry.core.packages import (
+    Dependency,
+    Package,
+    ProjectPackage,
+    URLDependency,
+)
+from conda_lock.vendor.poetry.factory import Factory
+from conda_lock.vendor.poetry.installation.chooser import Chooser
+from conda_lock.vendor.poetry.installation.operations.uninstall import Uninstall
+from conda_lock.vendor.poetry.puzzle import Solver
+from conda_lock.vendor.poetry.repositories.pool import Pool
+from conda_lock.vendor.poetry.repositories.pypi_repository import PyPiRepository
+from conda_lock.vendor.poetry.repositories.repository import Repository
+from conda_lock.vendor.poetry.utils.env import Env
 
 
 if typing.TYPE_CHECKING: