Update gitlab pipeline DAG documentation

doc/development/pipelines.md

@@ -135,12 +135,15 @@ graph RL;
   E[review-build-cng];
   F[build-qa-image];
   G[review-deploy];
-  I["karma, jest, webpack-dev-server, static-analysis"];
+  I["karma, jest"];
   I2["karma-as-if-foss, jest-as-if-foss<br/>(EE default refs only)"];
   J["compile-assets pull-push-cache<br/>(master only)"];
   J2["compile-assets pull-push-cache as-if-foss<br/>(EE master only)"];
   K[compile-assets pull-cache];
   K2["compile-assets pull-cache as-if-foss<br/>(EE default refs only)"];
+  U[frontend-fixtures];
+  U2["frontend-fixtures-as-if-foss<br/>(EE default refs only)"];
+  V["webpack-dev-server, static-analysis"];
   M[coverage];
   N["pages (master only)"];
   Q[package-and-qa];
@@ -159,17 +162,23 @@ subgraph "`prepare` stage"
     T
     end
 
+subgraph "`fixture` stage"
+    U -.-> |needs and depends on| A;
+    U -.-> |needs and depends on| K;
+    U2 -.-> |needs and depends on| A;
+    U2 -.-> |needs and depends on| K2;
+    end
+
 subgraph "`test` stage"
     D -.-> |needs| A;
-    I -.-> |needs and depends on| A;
-    I -.-> |needs and depends on| K;
-    I2 -.-> |needs and depends on| A;
-    I2 -.-> |needs and depends on| K;
+    I -.-> |needs and depends on| U;
+    I2 -.-> |needs and depends on| U2;
     L -.-> |needs and depends on| A;
     S -.-> |needs and depends on| A;
     S -.-> |needs and depends on| K;
     S -.-> |needs and depends on| T;
     L["db:*, gitlab:setup, graphql-docs-verify, downtime_check"] -.-> |needs| A;
+    V -.-> |needs and depends on| K;
     end
 
 subgraph "`post-test` stage"