Switched CI to Github Actions

Author: remorhaz

.gitattributes

@@ -0,0 +1,4 @@
+
+* text text=auto eol=lf
+
+.php diff=php

.github/workflows/build.yml

@@ -0,0 +1,47 @@
+name: Build
+
+on:
+  - push
+  - workflow_dispatch
+
+jobs:
+  tests:
+    name: PHP ${{ matrix.php-version }} on ${{ matrix.os }} (${{ matrix.composer-options }})
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        php-version:
+          - "8.0"
+          - "8.1"
+          - "8.2"
+        os:
+          - ubuntu-latest
+          - macOS-latest
+          - windows-latest
+        composer-options:
+          - ""
+          - "--prefer-lowest"
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Validate composer.json and composer.lock
+        run: composer validate
+
+      - name: Set up PHP ${{ matrix.php-version }}
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php-version }}
+          extensions: intl
+          coverage: xdebug
+          ini-values: error_reporting=E_ALL
+
+      - name: Install dependencies
+        run: composer update
+          --prefer-dist
+          --no-progress
+          ${{ matrix.composer-options }}
+
+      - name: Run tests
+        run: composer test

.travis.yml

@@ -1,7 +1,7 @@
 # PHP JSON Patch
 
 [![Latest Stable Version](https://poser.pugx.org/remorhaz/php-json-patch/v/stable)](https://packagist.org/packages/remorhaz/php-json-patch)
-[![Build Status](https://travis-ci.org/remorhaz/php-json-patch.svg?branch=master)](https://travis-ci.org/remorhaz/php-json-patch)
+[![Build](https://github.com/remorhaz/php-json-patch/actions/workflows/build.yml/badge.svg)](https://github.com/remorhaz/php-json-patch/actions/workflows/build.yml)
 [![Scrutinizer Code Quality](https://scrutinizer-ci.com/g/remorhaz/php-json-patch/badges/quality-score.png?b=master)](https://scrutinizer-ci.com/g/remorhaz/php-json-patch/?branch=master)
 [![codecov](https://codecov.io/gh/remorhaz/php-json-patch/branch/master/graph/badge.svg)](https://codecov.io/gh/remorhaz/php-json-patch)
 [![Infection MSI](https://badge.stryker-mutator.io/github.com/remorhaz/php-json-patch/master)](https://infection.github.io)
@@ -11,7 +11,7 @@
 This library implements [RFC6902](https://tools.ietf.org/html/rfc6902)-compliant JSON patch tool.
 
 ## Requirements
-- PHP 7.3+
+- PHP 8.0+
 - [JSON extension](https://www.php.net/manual/en/book.json.php) (ext-json) - required by [remorhaz/php-json-data](https://github.com/remorhaz/php-json-data) to access JSON documents.
 - [Internationalization functions](https://www.php.net/manual/en/book.intl.php) (ext-intl) - required by [`remorhaz/php-json-data`](https://github.com/remorhaz/php-json-data) to compare Unicode strings.