refactor: peel assemblicon off as indenpendent project

peel assemblicon off as indenpendent project
in SarasasChipWorkshop/assemblicon

tool/pyproject.toml

@@ -8,7 +8,7 @@ authors = [
 ]
 requires-python = ">=3.13"
 dependencies = [
-    "pillow>=12.3.0",
+    "assemblicon",
 ]
 
 [project.scripts]
@@ -17,3 +17,6 @@ aurora-iconset-builder = "aurora_iconset_builder:main"
 [build-system]
 requires = ["uv_build>=0.8.0,<0.9"]
 build-backend = "uv_build"
+
+[tool.uv.sources]
+assemblicon = { git = "https://github.com/SarasasChipWorkshop/assemblicon" }