Merge pull request #97 from kobayashi/test-go1.15

build with go1.15

Author: awlx

.github/workflows/main.yml

@@ -13,7 +13,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        go: ["1.13.x", "1.14.x"]
+        go: ["1.13.x", "1.14.x", "1.15.x"]
     steps:
       - name: Checkout
         uses: actions/checkout@v2
@@ -22,7 +22,7 @@ jobs:
         run: ./scripts/licensecheck.sh
 
       - name: Go installation
-        uses: actions/setup-go@v1.1.2
+        uses: actions/setup-go@v2
         with:
           go-version: ${{ matrix.go }}