add --version/-v flag

pyproject.toml

@@ -1,12 +1,12 @@
 [project]
 name = "slobs-cli"
-version = "0.7.5"
 description = "A command line application for Streamlabs Desktop"
 authors = [{ name = "onyx-and-iris", email = "code@onyxandiris.online" }]
 dependencies = ["pyslobs>=2.0.4", "asyncclick>=8.1.8"]
 requires-python = ">=3.10"
 readme = "README.md"
 license = { text = "MIT" }
+dynamic = ["version"]
 
 [project.scripts]
 slobs-cli = "slobs_cli.cli:run"
@@ -19,6 +19,10 @@ build-backend = "pdm.backend"
 [tool.pdm]
 distribution = true
 
+[tool.pdm.version]
+source = "file"
+path = "src/slobs_cli/__about__.py"
+
 [tool.pdm.scripts]
 cli.cmd = "slobs-cli {args}"
 cli.env_file = ".env"
@@ -28,8 +32,4 @@ test.env_file = ".env"
 post_test.cmd = "python tests/teardown.py"
 
 [dependency-groups]
-dev = [
-    "tox-pdm>=0.7.2",
-    "pytest>=8.4.0",
-    "virtualenv-pyenv>=0.5.0",
-]
+dev = ["tox-pdm>=0.7.2", "pytest>=8.4.0", "virtualenv-pyenv>=0.5.0"]