[renovate] Update golangci/golangci-lint Docker tag to v1.64.8

.gitlab-ci.yml

@@ -38,7 +38,7 @@ build-gnmi-target-debian:
     <<: *build
 
 code-quality:
-    image: ${CI_DEPENDENCY_PROXY_GROUP_IMAGE_PREFIX}/golangci/golangci-lint:v1.63.4-alpine
+    image: ${CI_DEPENDENCY_PROXY_GROUP_IMAGE_PREFIX}/golangci/golangci-lint:v1.64.8-alpine
     stage: analyze
     script:
         # writes golangci-lint output to gl-code-quality-report.json