Move docs to custom runner

Author: jdetter

.github/workflows/docs-publish.yaml

@@ -10,7 +10,11 @@ on:
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: spacetimedb-new-runner
+    container:
+      image: localhost:5000/spacetimedb-ci:latest
+      options: >-
+        --privileged
     steps:
       - name: Checkout repository
         uses: actions/checkout@v3

.github/workflows/docs-test.yaml

@@ -7,7 +7,11 @@ on:
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: spacetimedb-new-runner
+    container:
+      image: localhost:5000/spacetimedb-ci:latest
+      options: >-
+        --privileged
     steps:
       - name: Checkout repository
         uses: actions/checkout@v3