fix(angular): setup-ssr should output correct outpathPath for server build (#13243)

(cherry picked from commit e041223)

Author: Coly010

packages/angular/src/generators/setup-ssr/__snapshots__/setup-ssr.spec.ts.snap

@@ -22,7 +22,7 @@ Object {
   "executor": "@angular-devkit/build-angular:server",
   "options": Object {
     "main": "apps/app1/server.ts",
-    "outputPath": "dist/apps/apps/app1/server",
+    "outputPath": "dist/apps/app1/server",
     "tsConfig": "apps/app1/tsconfig.server.json",
   },
 }

packages/angular/src/generators/setup-ssr/lib/update-project-config.ts

@@ -14,7 +14,7 @@ export function updateProjectConfig(tree: Tree, schema: Schema) {
   projectConfig.targets.server = {
     executor: '@angular-devkit/build-angular:server',
     options: {
-      outputPath: `dist/apps/${projectConfig.root}/server`,
+      outputPath: `dist/${projectConfig.root}/server`,
       main: joinPathFragments(projectConfig.root, schema.serverFileName),
       tsConfig: joinPathFragments(projectConfig.root, 'tsconfig.server.json'),
     },