ci: route linux/amd64 jobs to lux-build-amd64 ARC scale set

.github/workflows/ci.yml

@@ -8,7 +8,7 @@ on:
     - main
 jobs:
   test:
-    runs-on: [self-hosted, linux, amd64]
+    runs-on: lux-build-amd64
     steps:
     - uses: actions/checkout@v4
     - uses: actions/setup-go@v5

.github/workflows/docker.yml

@@ -20,7 +20,7 @@ env:
 
 jobs:
   build:
-    runs-on: [self-hosted, linux, amd64]
+    runs-on: lux-build-amd64
     steps:
       - uses: actions/checkout@v4
       - uses: docker/setup-buildx-action@v3

.github/workflows/release.yml

@@ -21,7 +21,7 @@ permissions:
 
 jobs:
   goreleaser:
-    runs-on: [self-hosted, linux, amd64]
+    runs-on: lux-build-amd64
     steps:
       - uses: actions/checkout@v4
         with: