[CI] pin ruamel.yaml (#406)

peterjc123 · web-flow · commit 23ac894f5d23 · 2025-12-23T19:43:44.000+08:00
diff --git a/requirements.txt b/requirements.txt
@@ -1,5 +1,5 @@
 numpy>=1.18.5,<2
 PyYAML>=5.3.1
-ruamel.yaml>=0.16.12
+ruamel.yaml>=0.16.12,<0.18.0
 igraph>=0.9
 flatbuffers>=1.12
