Update go version to 1.16 and kubernetes dev dependencies to 1.21 (#2168)

Signed-off-by: Sanket Sudake <sanketsudake@gmail.com>

.github/workflows/lint.yaml

@@ -22,10 +22,10 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - name: Set up Go 1.15
+      - name: Set up Go
         uses: actions/setup-go@v2
         with:
-          go-version: 1.15
+          go-version: 1.16
 
       - name: Check out code
         uses: actions/checkout@v2
@@ -42,7 +42,7 @@ jobs:
           go mod verify
           go mod download
 
-          LINT_VERSION=1.41.1
+          LINT_VERSION=1.42.0
           curl -fsSL https://github.com/golangci/golangci-lint/releases/download/v${LINT_VERSION}/golangci-lint-${LINT_VERSION}-linux-amd64.tar.gz | \
             tar xz --strip-components 1 --wildcards \*/golangci-lint
           mkdir -p bin && mv golangci-lint bin/

.github/workflows/push_pr.yaml

@@ -28,13 +28,13 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        kindimage : [ 'kindest/node:v1.19.11','kindest/node:v1.20.7',  'kindest/node:v1.21.2' ]
+        kindimage : [ 'kindest/node:v1.19.11','kindest/node:v1.20.7',  'kindest/node:v1.21.1' ]
         os: [ ubuntu-latest ] 
     steps:
       - name: setup go
-        uses: actions/setup-go@v2.1.3
+        uses: actions/setup-go@v2
         with:
-          go-version: "1.15.12"
+          go-version: 1.16
 
       - name: Checkout sources
         uses: actions/checkout@v2.3.4

.github/workflows/upgrade_test.yaml

@@ -31,9 +31,9 @@ jobs:
         os: [ ubuntu-latest ]
     steps:
     - name: Setup go
-      uses: actions/setup-go@v2.1.3
+      uses: actions/setup-go@v2
       with:
-        go-version: '1.15.12'
+        go-version: 1.16
 
     - name: Checkout action sources
       uses: actions/checkout@v2.3.4