feat: Add CI workflow for Yarn and Dependabot configuration

This commit introduces a GitHub Actions workflow to manage Yarn dependencies, including installation, caching, and validation. Additionally, it sets up Dependabot for daily checks of Yarn dependency updates. These changes ensure automation and consistency in dependency management.

Author: efebagri

.github/dependabot.yml

@@ -0,0 +1,6 @@
+version: 2
+updates:
+  - package-ecosystem: yarn
+    directory: /
+    schedule:
+      interval: daily

.github/workflows/yarn.yml

@@ -0,0 +1,32 @@
+name: Yarn Install
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Update Yarn dependencies
+        run: yarn upgrade
+
+      - name: Validate package.json and yarn.lock
+        run: yarn check --verify-tree
+
+      - name: Cache Yarn packages
+        id: yarn-cache
+        uses: actions/cache@v3
+        with:
+          path: node_modules
+          key: ${{ runner.os }}-node-${{ hashFiles('**/yarn.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-node-
+
+      - name: Install dependencies
+        run: yarn install --prefer-offline --no-progress