chore: upgrade golang to 1.16 (#103)

.circleci/config.yml

@@ -14,11 +14,13 @@ kube-builder: &install-kube-builder
     # (you'll need to set the KUBEBUILDER_ASSETS env var if you put it somewhere else)
     sudo mv /tmp/kubebuilder_2.3.2_${os}_${arch} /usr/local/kubebuilder
     export PATH=$PATH:/usr/local/kubebuilder/bin
+golaing_image: &golang_image
+  image: circleci/golang:1.16.10
 version: 2
 jobs:
   build:
     docker:
-      - image: circleci/golang:1.15
+      - <<: *golang_image
     working_directory: /go/src/github.com/ory/hydra-maester
     steps:
       - checkout
@@ -27,7 +29,7 @@ jobs:
       - run: make
   test:
     docker:
-      - image: circleci/golang:1.15
+      - <<: *golang_image
     working_directory: /go/src/github.com/ory/hydra-maester
     steps:
       - checkout
@@ -42,8 +44,8 @@ jobs:
           name: Update golang
           command: |
             sudo rm -rf /usr/local/go/
-            curl -LO https://dl.google.com/go/go1.15.11.linux-amd64.tar.gz
-            sudo tar -C /usr/local -xzf go1.15.11.linux-amd64.tar.gz
+            curl -LO https://go.dev/dl/go1.16.10.linux-amd64.tar.gz
+            sudo tar -C /usr/local -xzf go1.16.10.linux-amd64.tar.gz
             sudo echo "export PATH=$PATH:/usr/local/go/bin" >> $HOME/.profile
             go version
       - run:
@@ -73,7 +75,7 @@ jobs:
 
   release:
     docker:
-      - image: circleci/golang:1.15
+      - <<: *golang_image
     working_directory: /go/src/github.com/ory/hydra-maester
     steps:
       - checkout