Require at least poetry-core v1.2.0 (#15566)

Signed-off-by: Kai A. Hiller <V02460@gmail.com>

changelog.d/15566.bugfix

+Require at least poetry-core v1.2.0.

pyproject.toml

@@ -368,7 +368,7 @@ furo = ">=2022.12.7,<2024.0.0"
 # system changes.
 # We are happy to raise these upper bounds upon request,
 # provided we check that it's safe to do so (i.e. that CI passes).
-requires = ["poetry-core>=1.0.0,<=1.5.0", "setuptools_rust>=1.3,<=1.5.2"]
+requires = ["poetry-core>=1.2.0,<=1.5.0", "setuptools_rust>=1.3,<=1.5.2"]
 build-backend = "poetry.core.masonry.api"