Add filler nodesets

Change-Id: I5ecb65f43000821c70bbc47b6deb8eb4b462063f
diff --git a/zuul.d/nodesets.yaml b/zuul.d/nodesets.yaml
index 95b7f64..0ce2848 100644
--- a/zuul.d/nodesets.yaml
+++ b/zuul.d/nodesets.yaml
@@ -1,17 +1,47 @@
 - nodeset:
+    name: debian-bookworm
+    nodes: []
+
+- nodeset:
+    name: debian-bookworm-arm64
+    nodes: []
+
+- nodeset:
+    name: ubuntu-xenial
+    nodes: []
+
+- nodeset:
+    name: ubuntu-bionic
+    nodes: []
+
+- nodeset:
     name: ubuntu-focal
     nodes:
       - name: ubuntu-focal
         label: focal-2c-8g
 
 - nodeset:
+    name: ubuntu-focal-arm64
+    nodes: []
+
+- nodeset:
     name: ubuntu-jammy
     nodes:
       - name: ubuntu-jammy
         label: jammy-8c-8g
 
 - nodeset:
+    name: ubuntu-jammy-arm64
+    nodes:
+      - name: ubuntu-jammy-arm64
+        label: jammy-2c-8g-arm64
+
+- nodeset:
     name: ubuntu-noble
     nodes:
       - name: ubuntu-noble
         label: noble-8c-8g
+
+- nodeset:
+    name: ubuntu-noble-arm64
+    nodes: []