replace circleci with gitaction

Author: ayonious

.circleci/config.yml

@@ -0,0 +1,33 @@
+name: CI
+
+on:
+  push:
+    branches: [ master, main ]
+  pull_request:
+    branches: [ master, main ]
+
+jobs:
+  build-and-test:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+    
+    - name: Setup Java
+      uses: actions/setup-java@v4
+      with:
+        java-version: '21'
+        distribution: 'temurin'
+    
+    - name: Cache Maven dependencies
+      uses: actions/cache@v4
+      with:
+        path: ~/.m2
+        key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
+        restore-keys: ${{ runner.os }}-m2
+    
+    - name: Run tests
+      run: mvn test
+    
+    - name: Build project
+      run: mvn clean package

.github/workflows/ci.yml

@@ -1,6 +1,6 @@
 # File Compression
 
-[![CircleCI](https://dl.circleci.com/status-badge/img/gh/ayonious/File-Compression/tree/master.svg?style=svg)](https://dl.circleci.com/status-badge/redirect/gh/ayonious/File-Compression/tree/master)
+[![CI](https://github.com/ayonious/File-Compression/workflows/CI/badge.svg)](https://github.com/ayonious/File-Compression/actions)
 [![codecov](https://codecov.io/gh/ayonious/File-Compression/branch/master/graph/badge.svg)](https://codecov.io/gh/ayonious/File-Compression)
 [![GitHub stars](https://img.shields.io/github/stars/ayonious/File-Compression?style=social)](https://github.com/ayonious/File-Compression/stargazers)