build: Pin version of setuptools.

seifertm · seifertm · commit 68d242f36b27 · 2025-09-12T08:00:38.000+02:00
This is required for reproducible builds. Pinned build dependencies should be updated by dependabot.
diff --git a/pyproject.toml b/pyproject.toml
@@ -1,8 +1,8 @@
 [build-system]
 build-backend = "setuptools.build_meta"
 requires = [
-  "setuptools>=77",
-  "setuptools-scm[toml]>=6.2",
+  "setuptools==80.9",
+  "setuptools-scm[toml]>=6.2,<9",
 ]
 
 [project]
