We only have a single test, but might as well run it anyway

.github/workflows/buildmaster.yaml

@@ -3,7 +3,7 @@ name: Build Owncast
 on:
   push:
     branches:
-      - github-actions
+      - master
   pull_request:
     branches: master
 

.github/workflows/test.yaml

@@ -0,0 +1,22 @@
+name: Tests
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches: master
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Install go
+        uses: actions/setup-go@v2
+        with:
+          go-version: '1.14.x'
+
+      - name: Run tests
+        run: go test ./...