chore: check if go modules are tidy before build

Signed-off-by: Evans Mungai <mbuevans@gmail.com>

.github/workflows/build-test.yml

@@ -28,6 +28,8 @@ jobs:
           check-latest: true
       - name: Test source headers are present
         run: make test-source-headers
+      - name: Check if go mod is tidy
+        run: go mod tidy -diff
       - name: Run unit tests
         run: make test-coverage
       - name: Test build

Makefile

@@ -246,3 +246,7 @@ info:
 	 @echo "Git Tag:           ${GIT_TAG}"
 	 @echo "Git Commit:        ${GIT_COMMIT}"
 	 @echo "Git Tree State:    ${GIT_DIRTY}"
+
+.PHONY: tidy
+tidy:
+	go mod tidy