chore: migrate to GitHub Actions

Author: eshanholtz

.github/workflows/deploy.yml

@@ -0,0 +1,41 @@
+name: Deploy
+on:
+  push:
+    tags:
+      - '*'
+  workflow_dispatch:
+
+jobs:
+  deploy:
+    name: Deploy
+    runs-on: ubuntu-latest
+    steps:
+        uses: actions/checkout@v2
+
+      - name: Setup .NET Core SDK
+        uses: actions/setup-dotnet@v1.8.2
+        with:
+          dotnet-version: '3.1.x'
+
+      - name: Publish package to NuGet
+        run: |
+          make install release
+          dotnet nuget push **/*.nupkg -k ${{ secrets.NUGET_API_KEY }} -s https://api.nuget.org/v3/index.json
+
+  notify-on-failure:
+    name: Slack notify on failure
+    if: ${{ failure() }}
+    needs: [ deploy ]
+    runs-on: ubuntu-latest
+    steps:
+      - uses: rtCamp/action-slack-notify@v2
+        env:
+          SLACK_COLOR: 'danger'
+          SLACK_ICON_EMOJI: ':github:'
+          SLACK_MESSAGE: ${{ format('Failed to deploy {1}{3} {0}/{1}/actions/runs/{2}', github.server_url, github.repository, github.run_id, ':') }}
+          SLACK_TITLE: Deployment Failure
+          SLACK_USERNAME: GitHub Actions
+          SLACK_MSG_AUTHOR: twilio-dx
+          SLACK_FOOTER: Posted automatically using GitHub Actions
+          SLACK_WEBHOOK: ${{ secrets.SLACK_WEBHOOK }}
+          MSG_MINIMAL: true

.github/workflows/test.yml

@@ -0,0 +1,45 @@
+name: Tests
+on:
+  push:
+    branches: [ '*' ]
+  pull_request:
+    branches: [ main ]
+  schedule:
+    # Run automatically at 8AM PST Monday-Friday
+    - cron: '0 15 * * 1-5'
+  workflow_dispatch:
+
+jobs:
+  tests:
+    name: Run Tests
+    runs-on: ubuntu-latest
+    timeout-minutes: 20
+    steps:
+        uses: actions/checkout@v2
+
+      - name: Setup .NET Core SDK
+        uses: actions/setup-dotnet@v1.8.2
+        with:
+          dotnet-version: '3.1.x'
+
+      - name: Build & Test
+        run: make install test
+      - run: bash <(curl -s https://codecov.io/bash)
+
+  notify-on-failure:
+    name: Slack notify on failure
+    if: ${{ failure() && github.ref == 'refs/heads/main' && github.event_name != 'pull_request' }}
+    needs: [ tests ]
+    runs-on: ubuntu-latest
+    steps:
+      - uses: rtCamp/action-slack-notify@v2
+        env:
+          SLACK_COLOR: 'danger'
+          SLACK_ICON_EMOJI: ':github:'
+          SLACK_MESSAGE: ${{ format('Failed running build on {1}{3} {0}/{1}/actions/runs/{2}', github.server_url, github.repository, github.run_id, ':') }}
+          SLACK_TITLE: Build Failure
+          SLACK_USERNAME: GitHub Actions
+          SLACK_MSG_AUTHOR: twilio-dx
+          SLACK_FOOTER: Posted automatically using GitHub Actions
+          SLACK_WEBHOOK: ${{ secrets.SLACK_WEBHOOK }}
+          MSG_MINIMAL: true

.travis.yml

@@ -1,6 +1,6 @@
 ![SendGrid Logo](twilio_sendgrid_logo.png)
 
-[![Travis Badge](https://travis-ci.com/sendgrid/smtpapi-csharp.svg?branch=main)](https://travis-ci.com/sendgrid/smtpapi-csharp)
+[![Build Status](https://github.com/sendgrid/smtpapi-csharp/actions/workflows/test.yml/badge.svg)](https://github.com/sendgrid/smtpapi-csharp/actions/workflows/test.yml)
 [![Twitter Follow](https://img.shields.io/twitter/follow/sendgrid.svg?style=social&label=Follow)](https://twitter.com/sendgrid)
 [![GitHub contributors](https://img.shields.io/github/contributors/sendgrid/smtpapi-csharp.svg)](https://github.com/sendgrid/smtpapi-csharp/graphs/contributors)
 [![MIT licensed](https://img.shields.io/badge/license-MIT-blue.svg)](LICENSE)