chore: move CI to GH actions (#354)

.github/workflows/unit.yml

@@ -0,0 +1,45 @@
+name: Lint and unit tests
+
+on:
+    push:
+        branches:
+            - master
+            - 'spring*'
+            - 'summer*'
+            - 'winter*'
+    pull_request:
+        branches:
+            - master
+            - 'spring*'
+            - 'summer*'
+            - 'winter*'
+
+jobs:
+    lint-unit-tests:
+        runs-on: ubuntu-22.04
+        steps:
+            - name: Checkout repository
+              uses: actions/checkout@v4
+
+            - name: Setup Node
+              uses: actions/setup-node@v4
+              with:
+                  node-version: '20.11.0'
+                  cache: 'yarn'
+
+            - name: Install dependencies
+              run: yarn install --frozen-lockfile
+
+            - name: Check License Headers
+              run: yarn check-license-headers
+
+            - name: Check formatting
+              run: yarn format:check
+
+            - name: Run linter
+              run: yarn lint
+
+            - name: Run unit tests
+              run: yarn test
+
+