[python] Fix pyproject (poetry 2.x) for httpx (#22289)

* fix poetry 2 httpx dependencies

* use poetry 2 for tests

Author: wing328

bin/configs/python-httpx.yaml

@@ -6,7 +6,7 @@ library: httpx
 additionalProperties:
   packageName: petstore_api
   mapNumberTo: float
-  poetry1: true
+  poetry1: false
 nameMappings:
   _type: underscore_type
   type_: type_with_underscore

modules/openapi-generator/src/main/resources/python/pyproject.mustache

@@ -61,10 +61,13 @@ requires-python = ">=3.9"
 dependencies = [
   "urllib3 (>=2.1.0,<3.0.0)",
   "python-dateutil (>=2.8.2)",
-{{#async}}
+{{#httpx}}
+  "httpx (>=0.28.1)",
+{{/httpx}}
+{{#asyncio}}
   "aiohttp (>=3.8.4)",
   "aiohttp-retry (>=2.8.3)",
-{{/async}}
+{{/asyncio}}
 {{#tornado}}
   "tornado (>=4.2,<5)",
 {{/tornado}}

samples/openapi3/client/petstore/python-httpx/pyproject.toml

@@ -1,25 +1,32 @@
-[tool.poetry]
+[project]
 name = "petstore_api"
 version = "1.0.0"
 description = "OpenAPI Petstore"
-authors = ["OpenAPI Generator Community <team@openapitools.org>"]
-license = "Apache-2.0"
+authors = [
+  {name = "OpenAPI Generator Community",email = "team@openapitools.org"},
+]
+license = { text = "Apache-2.0" }
 readme = "README.md"
-repository = "https://github.com/GIT_USER_ID/GIT_REPO_ID"
 keywords = ["OpenAPI", "OpenAPI-Generator", "OpenAPI Petstore"]
-include = ["petstore_api/py.typed"]
+requires-python = ">=3.9"
+
+dependencies = [
+  "urllib3 (>=2.1.0,<3.0.0)",
+  "python-dateutil (>=2.8.2)",
+  "httpx (>=0.28.1)",
+  "pem (>=19.3.0)",
+  "pycryptodome (>=3.9.0)",
+  "pydantic (>=2)",
+  "typing-extensions (>=4.7.1)",
+]
+
+[project.urls]
+Repository = "https://github.com/GIT_USER_ID/GIT_REPO_ID"
 
-[tool.poetry.dependencies]
-python = "^3.9"
-urllib3 = ">= 2.1.0, < 3.0.0"
-python-dateutil = ">= 2.8.2"
-httpx = ">= 0.28.1"
-pem = ">= 19.3.0"
-pycryptodome = ">= 3.9.0"
-pydantic = ">= 2"
-typing-extensions = ">= 4.7.1"
+[tool.poetry]
+requires-poetry = ">=2.0"
 
-[tool.poetry.dev-dependencies]
+[tool.poetry.group.dev.dependencies]
 pytest = ">= 7.2.1"
 pytest-cov = ">= 2.8.1"
 tox = ">= 3.9.0"