Fix CI: use Go 1.24.11 and remove atomic covermode

- Update test matrix to use Go 1.24.11 instead of 1.24.3
- Remove -covermode=atomic to fix covdata tool issues
- Default covermode works better with race detector

.github/workflows/ci.yml

@@ -41,7 +41,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go-version: ["1.24.3", "1.25.5"]
+        go-version: ["1.24.11", "1.25.5"]
     steps:
       - uses: actions/checkout@v4
       

Makefile

@@ -15,7 +15,7 @@ PLATFORMS := linux/amd64 linux/arm64 darwin/amd64 darwin/arm64 windows/amd64
 
 # Build flags
 GO_BUILD_FLAGS := -v
-GO_TEST_FLAGS := -v -race -coverprofile=coverage.txt -covermode=atomic
+GO_TEST_FLAGS := -v -race -coverprofile=coverage.txt
 
 # Installation paths
 INSTALL_PREFIX ?= /usr/local