ci: update ci golang to 1.16

.github/workflows/build.yaml

@@ -13,7 +13,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v2
       with:
-        go-version: 1.15
+        go-version: 1.16
     - name: lint
       shell: bash
       run: |
@@ -35,7 +35,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v2
       with:
-        go-version: 1.15
+        go-version: 1.16
     - name: Test
       shell: bash
       run: |
@@ -53,6 +53,6 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v2
       with:
-        go-version: 1.15
+        go-version: 1.16
     - name: Build Bin
       run: make build
\ No newline at end of file