Don't use setuptools_scm & specify version manually

If trying to install this package in an offline manner (see also:
linien-org/linien#378 ), the metadata pip will
put for this installation might be 0.0.0, due to potential compatiblitiy
issues with setuptools on the target host (RedPitaya probably). See
also:

pypa/setuptools-scm#636

pyproject.toml

@@ -1,11 +1,11 @@
 [build-system]
-requires = ["setuptools >= 30.3.0", "wheel", "setuptools_scm[toml]>=6.2"]
+requires = ["setuptools >= 30.3.0", "wheel"]
 build-backend = "setuptools.build_meta"
 
 [project]
 name = "pyrp3"
+version = "2.0.1"
 description = "Python utilities for RedPitaya"
-dynamic = ["version"]
 authors = [
     { name = "Pierre Cladé", email = "[email protected]" },
     { name = "Benjamin Wiegand", email = "[email protected]" },
@@ -41,14 +41,11 @@ dev = [
     "flake8>=5.0.4",
     "isort>=5.10.1",
     "flake8-pyproject>=1.2.3",
-    "setuptools_scm>=6.2",
 ]
 
 [tool.setuptools]
 packages = ["pyrp3"]
 
-[tool.setuptools_scm]
-
 [project.urls]
 homepage = "https://github.com/linien-org/pyrp3/"
 repository = "https://github.com/linien-org/pyrp3/"