Use Github actions instead of CircleCI/Appveyor

current drawbacks:
 - mac build fails due to `actions/setup-python` not working yet. ETA
 from github to fix is next week or so.
 - windows builds fail on poetry and a few tests other tests fail..
 these other tests might be real windows bugs. appveyor is too broken to
 tell, I'll need to test on a windows box.
 - fails on node 12 w/strange errors

Author: dschep

.github/workflows/publish.yml

@@ -0,0 +1,16 @@
+name: Publish
+
+on: [release]
+
+jobs:
+  publish-npm:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v1
+      - uses: actions/setup-node@v1
+        with:
+          version: 12
+          registry-url: https://registry.npmjs.org/
+      - run: npm publish
+        env:
+          NODE_AUTH_TOKEN: ${{secrets.npm_token}}

.github/workflows/test.yml

@@ -0,0 +1,50 @@
+name: Test
+
+on:
+  pull_request:
+    branches:
+      - master
+  push:
+    branches:
+      - master
+
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest, macOS-latest]
+        python-version: [3.6, 3.7, 2.7]
+        node-version: [8, 10, 12]
+    steps:
+      - uses: actions/checkout@v1
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v1
+        with:
+          version: ${{ matrix.python-version }}
+      - name: Set up Node ${{ matrix.node-version }}
+        uses: actions/setup-node@v1
+        with:
+          version: ${{ matrix.node-version }}
+      - name: Install pipenv
+        uses: dschep/install-pipenv-action@v1
+      - name: Install poetry
+        uses: dschep/[email protected]
+        with:
+          preview: true
+
+      - name: Install serverless
+        run: npm install -g serverless
+
+      - name: Install deps
+        run: npm install
+
+      - name: Lint
+        run: npm run lint
+
+      - name: Test
+        run: npm t
+        env:
+          RUNTIME: python${{ matrix.python-version }}

appveyor.yml

@@ -2,7 +2,7 @@
   "name": "serverless-python-requirements",
   "version": "5.0.0",
   "engines": {
-    "node": ">=6.0"
+    "node": ">=8.0"
   },
   "description": "Serverless Python Requirements Plugin",
   "author": "United Income <[email protected]>",