Update golangci-lint version and go mod cleanup

Signed-off-by: Shubharanshu Mahapatra <shubhum@amazon.com>

.github/workflows/test.yml

@@ -46,7 +46,7 @@ jobs:
           check-latest: true
           cache: true
       - name: golangci-lint
-        uses: golangci/golangci-lint-action@v3.7.0
+        uses: golangci/golangci-lint-action@v6.1.0
         with:
           version: v1.55.2
           args: --verbose

go.mod

@@ -65,23 +65,20 @@ require (
 	gotest.tools/v3 v3.5.1
 )
 
-require (
-	github.com/containerd/errdefs v0.1.0 // indirect
-	github.com/containerd/platforms v0.2.1 // indirect
-	github.com/moby/sys/user v0.3.0 // indirect
-	github.com/moby/sys/userns v0.1.0 // indirect
-)
-
 require (
 	github.com/AdaLogics/go-fuzz-headers v0.0.0-20230811130428-ced1acdcaa24 // indirect
 	github.com/AdamKorcz/go-118-fuzz-build v0.0.0-20230306123547-8075edf89bb0 // indirect
 	github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1 // indirect
 	github.com/bmizerany/assert v0.0.0-20160611221934-b7ed37b82869 // indirect
 	github.com/cilium/ebpf v0.11.0 // indirect
 	github.com/containerd/cgroups v1.1.0 // indirect
+	github.com/containerd/errdefs v0.1.0 // indirect
 	github.com/containerd/go-runc v1.0.0 // indirect
+	github.com/containerd/platforms v0.2.1 // indirect
 	github.com/containerd/ttrpc v1.2.5 // indirect
 	github.com/containerd/typeurl v1.0.3-0.20220422153119-7f6e6d160d67 // indirect
+	github.com/moby/sys/user v0.3.0 // indirect
+	github.com/moby/sys/userns v0.1.0 // indirect
 	github.com/containers/ocicrypt v1.1.10 // indirect
 	github.com/distribution/reference v0.6.0 // indirect
 	github.com/djherbis/times v1.5.0 // indirect