ci: replace Travis CI with Github Actions

Part of #134

Author: ligurio

.github/workflows/test.yml

@@ -0,0 +1,37 @@
+name: Testing
+
+on:
+  push:
+  workflow_dispatch:
+
+jobs:
+  test:
+    strategy:
+      fail-fast: false
+      matrix:
+        tarantool: ['1.10', '2.5', '2.6', '2.7', '2.8']
+    runs-on: [ubuntu-latest]
+    steps:
+      - uses: actions/checkout@master
+      - uses: tarantool/setup-tarantool@v1
+        with:
+          tarantool-version: ${{ matrix.tarantool }}
+
+      - name: Cache rocks
+        uses: actions/cache@v2
+        id: cache-rocks
+        with:
+          path: .rocks/
+          key: cache-rocks-${{ matrix.runs-on }}-01
+
+      - run: echo $PWD/.rocks/bin >> $GITHUB_PATH
+
+      - run: tarantoolctl rocks make
+
+      - name: Build module
+        run: |
+          cmake -DCMAKE_BUILD_TYPE=RelWithDebInfo -S . -B build
+          make -C build
+
+      - name: Run tests
+        run: make -C build check

.travis.yml

@@ -6,8 +6,14 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
+### Changed
+
 - Revert all changes related to http v2 (#134).
 
+### Added
+
+- Replace Travis CI with Github Actions.
+
 ## [2.1.0] - 2020-01-30
 
 ### Added

CHANGELOG.md

@@ -5,7 +5,7 @@ align="right">
 
 # HTTP server for Tarantool 1.7.5+
 
-[![Build Status](https://travis-ci.org/tarantool/http.png?branch=tarantool-1.7)](https://travis-ci.org/tarantool/http)
+[![Test](https://github.com/tarantool/http/actions/workflows/test.yml/badge.svg)](https://github.com/tarantool/http/actions/workflows/test.yml)
 
 > **Note:** In Tarantool 1.7.5+, a full-featured HTTP client is available aboard.
 > For Tarantool 1.6.5+, both HTTP server and client are available