Use test.Dockerfile image for large image tests

Also use node 16, since that is what is used by the current girder_test
image.

.circleci/config.yml

@@ -4,7 +4,7 @@ executors:
   toxandnode:
     working_directory: ~/project
     docker:
-      - image: girder/girder_test:py38-node16
+      - image: girder/tox-and-node
 commands:
   tox:
     description: "Run tox"
@@ -21,6 +21,12 @@ commands:
       # - run:
       #     name: Preinstall phantomjs to work around an npm permission issue
       #     command: npm install -g phantomjs-prebuilt --unsafe-perm
+      - run:
+          name: Install and build large_image plugin
+          command: |
+            npm ci
+            npm run build
+          working_directory: girder/girder_large_image/web_client
       - run:
           name: Run tests via tox
           # Piping through cat does less buffering of the output but can