Poetry: Bump Python to 3.11 and update build system to poetry-core

The oldest still-supported version of Blender is 4.2-LTS, which uses
Python 3.11, so that's what's now the required Python version for BAT.

Make the build system depend on `poetry-core` instead of `poetry`, to
make package builds faster (especially important when using Tox for
testing in various environments).

This also re-generates the `poetry.lock` file, so updates the
dependencies to their latest version compatible with the `project.toml`
file.

CHANGELOG.md

@@ -5,6 +5,7 @@ changed functionality, fixed bugs).
 
 # Version 1.21 (in development)
 
+- Require Python version 3.11 or newer.
 - Skip packed blend files. BAT will assume that the packed file is self-contained, i.e. any asset used by a packed blend file should also be packed.
 - Support Geometry Node simulation caches ([#92890](https://projects.blender.org/blender/blender-asset-tracer/pulls/92890)).
 - Add a `py.typed` marker file, such that tooling like mypy know BAT has type annotations ([#92895](https://projects.blender.org/blender/blender-asset-tracer/pulls/92895)).

pyproject.toml

@@ -24,7 +24,7 @@ s3 = ["boto3"]
 zstandard = ["zstandard"]
 
 [tool.poetry.dependencies]
-python = "^3.9"
+python = ">=3.11,<4.0"
 requests = "^2.11"
 
 # For S3 storage support:
@@ -55,5 +55,5 @@ bat = 'blender_asset_tracer.cli:cli_main'
 
 
 [build-system]
-requires = ["poetry>=0.12"]
-build-backend = "poetry.masonry.api"
+requires = ["poetry-core>=2.0.0,<3.0.0"]
+build-backend = "poetry.core.masonry.api"

setup.cfg

@@ -6,7 +6,7 @@ max-line-length = 100
 
 [mypy]
 # This should match pyproject.toml
-python_version = 3.9
+python_version = 3.11
 
 warn_redundant_casts = True
 ignore_missing_imports = True

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 isolated_build = true
-envlist = py39, py310, py311, py312, py313
+envlist = py311, py312, py313
 
 [testenv]
 whitelist_externals = poetry