chore: update go to v1.16 (#1062)

Signed-off-by: Rui Chen <rui@chenrui.dev>

.github/workflows/build.yml

@@ -23,7 +23,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v2.1.3
       with:
-        go-version: 1.15
+        go-version: 1.16
     - name: Restore Cache
       uses: actions/cache@v2.1.4
       with:

.github/workflows/e2e.yml

@@ -23,7 +23,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v2.1.3
       with:
-        go-version: 1.15
+        go-version: 1.16
     - name: Restore Cache
       uses: actions/cache@v2.1.4
       with:

.github/workflows/generated_code_checks.yml

@@ -11,7 +11,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v2.1.3
       with:
-        go-version: 1.15
+        go-version: 1.16
     - name: Restore Cache
       uses: actions/cache@v2.1.4
       with:

.github/workflows/lint.yml

@@ -17,7 +17,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v2.1.3
       with:
-        go-version: 1.15
+        go-version: 1.16
     - name: Run linters
       run: |
         export PATH=$PATH:$(go env GOPATH)/bin

.github/workflows/release.yml

@@ -16,7 +16,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v2.1.3
       with:
-        go-version: 1.15
+        go-version: 1.16
     - name: Run GoReleaser
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

go.mod

@@ -1,6 +1,6 @@
 module github.com/terraform-linters/tflint
 
-go 1.15
+go 1.16
 
 require (
 	github.com/fatih/color v1.10.0