Fix CI: add GOPROXY=direct fallback, improve retry logic

Author: fadymondy

.github/workflows/ci.yml

@@ -17,6 +17,7 @@ jobs:
       GONOSUMCHECK: github.com/orchestra-mcp/*
       GONOSUMDB: github.com/orchestra-mcp/*
       GOFLAGS: -mod=mod
+      GOPROXY: "https://proxy.golang.org,direct"
     steps:
       - uses: actions/checkout@v4
 
@@ -26,9 +27,10 @@ jobs:
 
       - name: Download dependencies
         run: |
-          for i in 1 2 3; do
+          for i in 1 2 3 4 5; do
             go mod download && break
-            echo "Retry $i: waiting for Go proxy to index..."
+            echo "Attempt $i failed, retrying with GOPROXY=direct..."
+            GOPROXY=direct go mod download && break
             sleep 15
           done