added self hosted job runner

Author: k-e-adesso

.github/workflows/build-with-self-hosted.yml

@@ -0,0 +1,22 @@
+name: Java CI with Maven
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+
+jobs:
+  build:
+    runs-on: [self-hosted, linux, x64]
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up JDK 17
+        uses: actions/setup-java@v3
+        with:
+          java-version: '17'
+          distribution: 'adopt'
+          cache: maven
+      - name: Build with Maven
+        run: mvn -B package --file pom.xml

README.md

@@ -3,6 +3,7 @@
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
 ![GitHub last commit](https://img.shields.io/github/last-commit/kirillesau/spring-demo-application)
 [![Java CI with Maven](https://github.com/kirillesau/spring-demo-application/actions/workflows/build%20with%20maven.yml/badge.svg?branch=master)](https://github.com/kirillesau/spring-demo-application/actions/workflows/build%20with%20maven.yml)
+[![Java CI with Maven](https://github.com/kirillesau/spring-demo-application/actions/workflows/build-with-self-hosted.yml/badge.svg?branch=master)](https://github.com/kirillesau/spring-demo-application/actions/workflows/build-with-self-hosted.yml)
 [![Docker Image CI](https://github.com/kirillesau/spring-demo-application/actions/workflows/docker-image.yml/badge.svg?branch=master)](https://github.com/kirillesau/spring-demo-application/actions/workflows/docker-image.yml)
 
 An example application with spring boot. It includes topics such