remake pyproject with poetry 2

pyproject.toml

@@ -1,21 +1,23 @@
-[tool.poetry]
+[project]
 name = "voicemeeter-api"
-version = "2.6.0"
+version = "2.6.1"
 description = "A Python wrapper for the Voiceemeter API"
-authors = ["onyx-and-iris <code@onyxandiris.online>"]
-license = "MIT"
+authors = [
+    {name = "Onyx and Iris",email = "code@onyxandiris.online"}
+]
+license = {text = "MIT"}
 readme = "README.md"
-repository = "https://github.com/onyx-and-iris/voicemeeter-api-python"
+requires-python = "<4.0,>=3.10"
+dependencies = [
+    "tomli (>=2.0.1,<3.0) ; python_version < '3.11'",
+]
 
+[tool.poetry]
 packages = [{ include = "voicemeeterlib" }]
 
 [tool.poetry.requires-plugins]
 poethepoet = "^0.32.1"
 
-[tool.poetry.dependencies]
-python = "^3.10"
-tomli = { version = "^2.0.1", python = "<3.11" }
-
 [tool.poetry.group.dev.dependencies]
 pytest = "^7.4.4"
 pytest-randomly = "^3.12.0"
@@ -24,7 +26,7 @@ tox = "^4.23.2"
 virtualenv-pyenv = "^0.5.0"
 
 [build-system]
-requires = ["poetry-core>=1.0.0"]
+requires = ["poetry-core>=2.0.0,<3.0.0"]
 build-backend = "poetry.core.masonry.api"
 
 [tool.poe.tasks]
@@ -51,6 +53,22 @@ allowlist_externals = poetry
 commands =
   poetry install -v
   poetry run pytest tests/
+
+[testenv:dsl]
+setenv = VIRTUALENV_DISCOVERY=pyenv
+allowlist_externals = poetry
+deps = pyparsing
+commands =
+  poetry install -v --without dev
+  poetry run python examples/dsl/
+
+[testenv:obs]
+setenv = VIRTUALENV_DISCOVERY=pyenv
+allowlist_externals = poetry
+deps = obsws-python
+commands =
+  poetry install -v --without dev
+  poetry run python examples/obs/
 """
 
 [tool.ruff]
@@ -101,8 +119,8 @@ dummy-variable-rgx = "^(_+|(_+[a-zA-Z0-9_]*[a-zA-Z0-9]+?))$"
 
 
 [tool.ruff.format]
-# Like Black, use double quotes for strings.
-quote-style = "double"
+# Unlike Black, use single quotes for strings.
+quote-style = "single"
 
 # Like Black, indent with spaces, rather than tabs.
 indent-style = "space"