Raise poetry-core version cap to 1.7.0

Signed-off-by: Theodore Ni <3806110+tjni@users.noreply.github.com>

pyproject.toml

@@ -367,7 +367,7 @@ 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>=1.1.0,<=1.6.0", "setuptools_rust>=1.3,<=1.6.0"]
+requires = ["poetry-core>=1.1.0,<=1.7.0", "setuptools_rust>=1.3,<=1.6.0"]
 build-backend = "poetry.core.masonry.api"