build: run tests on node v15 (#10672)

Author: aladdin-add

.circleci/config.yml

@@ -83,6 +83,20 @@ jobs:
       - store_test_results:
           path: reports/junit
 
+  test-node-15:
+    working_directory: ~/jest
+    executor: node/default
+    steps:
+      - checkout
+      - node/install:
+          node-version: '15'
+          install-npm: false
+      - node/install-packages: *install
+      - run:
+          command: yarn test-ci-partial
+      - store_test_results:
+          path: reports/junit
+
   test-or-deploy-website:
     working_directory: ~/jest
     executor: node/default
@@ -105,7 +119,8 @@ workflows:
       - test-node-10
       - test-node-12
       - test-node-13
-      - test-node-14 # current
+      - test-node-14
+      - test-node-15 # current
       - test-jest-circus
       - test-or-deploy-website:
           filters: *filter-ignore-gh-pages

.github/workflows/nodejs.yml

@@ -54,7 +54,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node-version: [10.x, 12.x, 13.x, 14.x]
+        node-version: [10.x, 12.x, 13.x, 14.x, 15.x]
         os: [ubuntu-latest, macOS-latest, windows-latest]
     runs-on: ${{ matrix.os }}