Split CT into three steps (#8)

Spliced the continuous testing step into three separated steps.

Added the yarn install as a needed step that downloads the dependencies
(just to stop it from spamming three yarn installs at the same time).

Closes #7

.github/workflows/javascript-test.yml

@@ -3,6 +3,32 @@ name: Continuous testing
 on: [pull_request]
 
 jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Use node 18
+        uses: actions/setup-node@v3
+        with:
+          node-version: 18
+      - uses: c-hive/gha-yarn-cache@v2
+      - name: Install dependencies
+        run: yarn install --frozen-lockfile
+      - run: yarn run lint
+
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Use node 18
+        uses: actions/setup-node@v3
+        with:
+          node-version: 18
+      - uses: c-hive/gha-yarn-cache@v2
+      - name: Install dependencies
+        run: yarn install --frozen-lockfile
+      - run: yarn run build
+
   test:
     runs-on: ubuntu-latest
     steps:
@@ -11,11 +37,7 @@ jobs:
         uses: actions/setup-node@v3
         with:
           node-version: 18
+      - uses: c-hive/gha-yarn-cache@v2
       - name: Install dependencies
         run: yarn install --frozen-lockfile
-      - name: Run lint
-        run: yarn lint
-      - name: Build the project
-        run: yarn build
-      - name: Run tests
-        run: yarn test
+      - run: yarn run test

README.md

@@ -2,4 +2,6 @@
 
 [![GitHub Issue Sync](https://github.com/paritytech/review-bot/actions/workflows/github-issue-sync.yml/badge.svg)](https://github.com/paritytech/review-bot/actions/workflows/github-issue-sync.yml)
 
+[![Publish package to GitHub Packages](https://github.com/paritytech/review-bot/actions/workflows/publish.yml/badge.svg?branch=main)](https://github.com/paritytech/review-bot/actions/workflows/publish.yml)
+
 Have custom review rules for PRs with auto assignment.