Pull go modules before running golangci-lint

This allows to use the cache for the go modules and it also takes
downloading of the modules out of the timeout that is on the linter.

Author: SimonBarendse

.circleci/config.yml

@@ -5,6 +5,14 @@ jobs:
       - image: golangci/golangci-lint:v1.23.8-alpine
     steps:
       - checkout
+      - restore_cache:
+          keys:
+            - go-modules-{{ checksum "go.mod" }}
+      - run: go mod download
+      - save_cache:
+          key: go-modules-{{ checksum "go.mod" }}
+          paths:
+            - /go/pkg/mod
       - run: golangci-lint run
   verify-build:
     parameters: