ci: add initial Github Action lint workflow

The eslint CI action has now been moved to a Github Action.
The check also now adds annotations to PRs when eslint generates an error
or warning. The eslint cache is now saved and reused which provides improved
runtimes for the CI action.

Author: clydin

.circleci/dynamic_config.yml

@@ -181,12 +181,6 @@ jobs:
           paths:
             - ~/.cache/yarn
 
-  lint:
-    executor: action-executor
-    steps:
-      - custom_attach_workspace
-      - run: yarn lint
-
   validate:
     executor: action-executor
     steps:
@@ -386,9 +380,6 @@ workflows:
     jobs:
       # Linux jobs
       - setup
-      - lint:
-          requires:
-            - setup
       - validate:
           requires:
             - setup

.github/workflows/lint.yml

@@ -0,0 +1,35 @@
+name: lint
+
+on:
+  pull_request:
+
+# Declare default permissions as read only.
+permissions:
+  contents: read
+
+jobs:
+  eslint:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # v3.5.2
+        with:
+          persist-credentials: false
+
+      - name: Setup Node.js
+        uses: actions/setup-node@64ed1c7eab4cce3362f8c340dee64e5eaeef8f7c # v3.6.0
+        with:
+          node-version-file: '.nvmrc'
+          cache: yarn
+
+      - name: Install Dependencies
+        run: yarn install --frozen-lockfile --ignore-scripts
+
+      - name: Setup ESLint Caching
+        uses: actions/cache@88522ab9f39a2ea568f7027eddc7d8d8bc9d59c8 # v3.3.1
+        with:
+          path: .eslintcache
+          key: ${{ runner.os }}-${{ hashFiles('.eslintrc.json') }}-1
+
+      - name: Run ESLint
+        run: yarn lint --cache-strategy content