Move the pipelines where github.com reads them, on lux's own runners

All eight lived in .hanzo/workflows, a path github.com does not read, so with
github.com canonical they dispatched nothing at all.

cicd.yml also asked for hanzo-build-linux-amd64 — another org's pool. A
cross-org label does not fail a job, it queues it until the 24h timeout, so
this reads as a slow build rather than a misrouted one. It asks for
lux-build-amd64 now, which is what every other workflow here already used.

.github/workflows/cicd.yml

@@ -19,7 +19,7 @@ on:
 
 jobs:
   render:
-    runs-on: [self-hosted, hanzo-build-linux-amd64]
+    runs-on: [self-hosted, lux-build-amd64]
     steps:
       - uses: actions/checkout@v4