Bump go version to 1.17 in go.mod

Signed-off-by: Wang Bing <[email protected]>

Author: pigletfly

go.mod

@@ -1,6 +1,6 @@
 module github.com/containerd/cgroups
 
-go 1.16
+go 1.17
 
 require (
 	github.com/cilium/ebpf v0.4.0
@@ -14,3 +14,9 @@ require (
 	go.uber.org/goleak v1.1.12
 	golang.org/x/sys v0.0.0-20210510120138-977fb7262007
 )
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c // indirect
+)