github: Try adding a basic github CI test

Author: rwmjones

.github/workflows/main.yml

@@ -0,0 +1,29 @@
+# Run the job below on every push to master branch.
+on:
+  push:
+    branches:
+      - master
+
+# Runs basic configure, make and make check.
+jobs:
+  tests:
+    name: Build and run the tests
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v2
+      - name: Install build dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get -y build-dep libguestfs
+      - name: Build the code
+      - run: |
+          autoreconf -fiv
+          ./configure
+          make
+      - name: Run the quick test
+      - run: |
+          make quickcheck
+      - name: Run the full tests
+      - run: |
+          make check