Fix docs build script

.github/workflows/docs.yml

@@ -20,7 +20,7 @@ jobs:
 
       - name: Analyze Dart sources
         working-directory: docs
-        run: >
+        run: >-
           dart analyze --fatal-infos --fatal-warnings
           dart run drift_dev analyze
 

docs/build.deploy.yaml

@@ -4,17 +4,31 @@ builders:
     build_to: cache
     builder_factories: ["writeVersions"]
     build_extensions: {"$package$": ["lib/versions.json"]}
+  code_snippets:
+    import: 'tool/snippets.dart'
+    build_to: cache
+    builder_factories: ["SnippetsBuilder.new"]
+    build_extensions: {"": [".excerpt.json"]}
+    auto_apply: none
 
 targets:
   prepare:
     builders:
       "|versions":
         enabled: true
+      "|code_snippets":
+        enabled: true
+        generate_for:
+          - "lib/snippets/**/*.dart"
+          - "lib/snippets/*/*.drift"
+          - "lib/snippets/*.dart"
     auto_apply_builders: false
     sources:
       - "$package$"
       - "lib/versions.json"
+      - "lib/snippets/**"
       - "tool/write_versions.dart"
+      - "tool/snippets.dart"
 
   $default:
     dependencies: [":prepare"]