Use new mattermost-govet (#18329)

```release-note
NONE
```

.circleci/config.yml

@@ -179,9 +179,7 @@ jobs:
           at: ~/mattermost/
       - run:
           command: |
-            echo "Installing mattermost-govet"
             export GOBIN=${PWD}/mattermost-server/bin
-            GO111MODULE=off go get -u github.com/mattermost/mattermost-govet
             export PATH=$PATH:$GOBIN
             cd mattermost-server
             make config-reset

.gitlab-ci.yml

@@ -25,7 +25,6 @@ empty:
   image: $CI_REGISTRY/mattermost/ci/images/golangci-lint:v1.39.0-1
   stage: test
   script:
-    - GO111MODULE=off GOBIN=$PWD/bin go get -u github.com/mattermost/mattermost-govet
     - make config-reset
     - make check-style #todo MM_VET_OPENSPEC_PATH='$CI_PROJECT_DIR/mattermost-api-reference/v4/html/static/mattermost-openapi-v4.yaml'
   timeout: 60 mins

Makefile

@@ -618,10 +618,7 @@ update-dependencies: ## Uses go get -u to update all the dependencies while hold
 	$(GO) mod tidy
 
 vet: ## Run mattermost go vet specific checks
-	@if ! [ -x "$$(command -v $(GOBIN)/mattermost-govet)" ]; then \
-		echo "mattermost-govet is not installed. Please install it executing \"GO111MODULE=off GOBIN=$(PWD)/bin go get -u github.com/mattermost/mattermost-govet\""; \
-		exit 1; \
-	fi;
+	$(GO) install github.com/mattermost/mattermost-govet/v2@new
 	@VET_CMD="-license -structuredLogging -inconsistentReceiverName -inconsistentReceiverName.ignore=session_serial_gen.go,team_member_serial_gen.go,user_serial_gen.go -emptyStrCmp -tFatal -configtelemetry -errorAssertions"; \
 	if ! [ -z "${MM_VET_OPENSPEC_PATH}" ] && [ -f "${MM_VET_OPENSPEC_PATH}" ]; then \
 		VET_CMD="$$VET_CMD -openApiSync -openApiSync.spec=$$MM_VET_OPENSPEC_PATH"; \