bump go version

Author: fujiwara

.github/workflows/go.yml

@@ -5,8 +5,8 @@ jobs:
     strategy:
       matrix:
         go:
-          - 1.15
           - 1.16
+          - 1.17
     name: Build
     runs-on: ubuntu-latest
 

.github/workflows/release.yml

@@ -14,9 +14,9 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v2
       - name: Set up Go
-        uses: actions/setup-go@v1
+        uses: actions/setup-go@v2
         with:
-          go-version: 1.16
+          go-version: 1.17
       - name: Run GoReleaser
         uses: goreleaser/goreleaser-action@v1
         with: