snakeoile>=0.11.1 isn't needed for build, so adjust it to 0.11.0

This in turn works around uv/pip build-isolation logic that forces
pypi for the build step.

I've zero solution for if an unreleased snakeoil is needed for build,
beyond using the git+... approach which breaks version in it's own way.

Signed-off-by: Brian Harring <ferringb@gmail.com>

Author: ferringb

pyproject.toml

@@ -1,7 +1,7 @@
 [build-system]
 requires = [
 	"flit_core >=3.8,<4",
-	"snakeoil >= 0.11.1.dev0",
+	"snakeoil >= 0.11.0",
 ]
 build-backend = "py_build"
 backend-path = ["."]