Switch from Travis CI to GitHub Actions

.github/workflows/ci.yml

@@ -0,0 +1,19 @@
+name: Build and Test
+on: [push, pull_request]
+jobs:
+  build:
+    runs-on: ubuntu-22.04
+    strategy:
+      matrix:
+        java: [ '8', '11', '17' ]
+    name: Java ${{ matrix.Java }} Build and Test
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+      - name: Setup java
+        uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: ${{ matrix.java }}
+      - name: Maven verify
+        run: mvn -V -B verify

README.md

@@ -1,6 +1,6 @@
 # EXPath Tools for Saxon
 
-[![Build Status](https://travis-ci.com/expath/expath-tools-saxon.svg?branch=master)](https://travis-ci.com/expath/expath-tools-saxon)
+[![Build Status](https://github.com/expath/expath-tools-saxon/actions/workflows/ci.yml/badge.svg?branch=main)](https://github.com/expath/expath-tools-saxon/actions/workflows/ci.yml)
 [![Maven Central](https://img.shields.io/maven-central/v/org.expath.tools/tools-saxon.svg?label=Maven%20Central)](https://search.maven.org/search?q=g:%22org.expath.tools%22%20AND%20a:%22tools-saxon%22)
 [![License](https://img.shields.io/badge/license-MPL%201.0-blue.svg)](https://opensource.org/licenses/MPL-1.0)