chore: migrate travis ci to github actions

.github/workflows/build.yml

@@ -1,39 +1,52 @@
 name: Build
 
 on:
-  workflow_dispatch:
   pull_request:
-    types:
-      - opened
-      - reopened
-      - synchronize
+    branches:
+      - '**'
   push:
     branches:
       - master
-      - chore/*
-      - bug/*
-      - feat/*
+    tags:
+      - '*'
 
 jobs:
   build:
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        php-versions: [7.4]
     steps:
     - name: Checkout repository
       uses: actions/checkout@v2
-
+    - name: Setup cache environment
+      id: extcache
+      uses: shivammathur/cache-extensions@v1
+      with:
+        php-version: ${{ matrix.php-versions }}
+        extensions: mbstring, xml, ctype, iconv, pcov
+        key: cache-v1
     - name: Set up PHP
       uses: shivammathur/setup-php@v2
       with:
-        php-version: '8.0'
+        php-version: ${{ matrix.php-versions }}
         extensions: mbstring, xml, ctype, iconv, pcov
-        coverage: pcov
-
+        coverage: pcov        
+    - name: Get composer cache directory
+      id: composer-cache
+      run: echo "::set-output name=dir::$(composer config cache-files-dir)"
+    - name: Validate composer.json and composer.lock
+      run: composer validate
+    - name: Cache dependencies
+      uses: actions/cache@v2
+      with:
+        path: ${{ steps.composer-cache.outputs.dir }}
+        key: composer-${{ hashFiles('**/composer.lock') }}
+        restore-keys: composer-
     - name: Install dependencies
       run: composer install --no-interaction --no-progress --prefer-dist
-
     - name: Run PHPUnit tests
       run: vendor/bin/phpunit --coverage-clover build/logs/clover.xml
-
     - name: SonarCloud Scan
       uses: sonarsource/sonarcloud-github-action@master
       env:

README.md

@@ -1,4 +1,4 @@
-[![Build Status](https://semaphoreci.com/api/v1/continuum/transbank-sdk-php/branches/master/badge.svg)](https://semaphoreci.com/continuum/transbank-sdk-php)
+![Build Status](https://github.com/TransbankDevelopers/transbank-sdk-php/actions/workflows/build.yml/badge.svg?branch=master)
 [![Latest Stable Version](https://poser.pugx.org/transbank/transbank-sdk/v/stable)](https://packagist.org/packages/transbank/transbank-sdk)
 
 # Transbank PHP SDK