adding github actions

.github/workflows/gradle.yml

@@ -0,0 +1,47 @@
+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+# This workflow will build a Java project with Gradle and cache/restore any dependencies to improve the workflow execution time
+# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-java-with-gradle
+
+name: Java CI with Gradle
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+
+    steps:
+    - name: Checkout sources
+      uses: actions/checkout@v4
+    - name: Set up JDK 21
+      uses: actions/setup-java@v4
+      with:
+        java-version: '21'
+        distribution: 'temurin'
+
+    - name: Setup Gradle
+      uses: gradle/actions/setup-gradle@db19848a5fa7950289d3668fb053140cf3028d43 # v3.3.2
+      with:
+        gradle-version: '8.7'
+
+    - name: Build mn-getting-started
+      run: gradle clean build
+      working-directory: ./Learn-Micronaut-v4/mn-getting-started
+
+    - name: Build mn-products
+      run: gradle clean build
+      working-directory: ./Learn-Micronaut-v4/mn-products
+
+    - name: Build mn-web-socket
+      run: gradle clean build
+      working-directory: ./Learn-Micronaut-v4/mn-web-socket

.github/workflows/maven.yml

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+# This workflow will build a Java project with Maven, and cache/restore any dependencies to improve the workflow execution time
+# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-java-with-maven
+
+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+
+name: Java CI with Maven
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up JDK 21
+      uses: actions/setup-java@v3
+      with:
+        java-version: '21'
+        distribution: 'temurin'
+        cache: maven
+    - name: Build mn-getting-started-maven
+      run: mvn -B package --file pom.xml
+      working-directory: ./Learn-Micronaut-v4/mn-getting-started-maven