Build & test against Go 1.13 and latest Go (#346)

.github/workflows/buildmaster.yaml

@@ -11,7 +11,7 @@ jobs:
   build:
     strategy:
       matrix:
-        go-version: [1.13.x, 1.14.x]
+        go-version: [~1.13, ^1]
         platform: [ubuntu-latest, macos-latest]
     runs-on: ${{ matrix.platform }}
 

.github/workflows/test.yaml

@@ -16,7 +16,7 @@ jobs:
       - name: Install go
         uses: actions/setup-go@v2
         with:
-          go-version: '1.14.x'
+          go-version: "^1"
 
       - name: Run tests
         run: go test ./...