Loosen versioneer version requirement from exact to min version

Makes downstream packaging simpler and more robust, avoiding the need for downstream patches when versioneer is updated. Building with versioneer v0.29.0 works fine on Arch Linux, see: https://aur.archlinux.org/packages/python-pytensor

Loosen versioneer version requirement from exact to min version
a10c217f · Carl Smedstad · Ricardo Vieira · 68859fec · a10c217f
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,7 +3,7 @@ requires = [
  "setuptools>=48.0.0",
  "cython",
  "numpy>=1.17.0",
-  "versioneer[toml]==0.28",
+  "versioneer[toml]>=0.28",
 ]
 build-backend = "setuptools.build_meta"