Check for go mod inconsistencies

.github/workflows/verify.yml

@@ -25,8 +25,16 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-go-
       - run: go version
+
+      - run: go mod tidy
+      - run: git diff --exit-code go.mod
+      - name: Error message
+        if: ${{ failure() }}
+        run: echo '::error file=go.mod,line=1,col=1::Inconsistent go mod file. Ensure you have run `go mod tidy` and committed the files locally.'; echo '::error file=enterprise_mod.go,line=1,col=1::Possible missing enterprise exclusive dependencies.'
+
       - run: make mocks
       - run: git diff --exit-code
       - name: Error message
         if: ${{ failure() }}
         run: echo '::error file=Makefile,line=11,col=1::Incorrectly generated files. Ensure you have run `make mocks` and committed the files locally.'
+

enterprise_mod.go

@@ -0,0 +1,13 @@
+// +build enterprisemod
+
+// This file contains enterprise exclusive dependencies.
+// 	So that the go.mod file can be consistant regardless of enterprise code being present.
+// To detect enterprise exclusive dependencies:
+// 1. run `make enterprise-cleanup`
+// 2. `go mod tidy`
+// 3. observe the changes on go.mod `git diff go.mod`
+package enterprisemod
+
+import (
+	_ "github.com/spaolacci/murmur3"
+)