Raise Golang version for building telegraf

Related-Prod: PROD-16103

Change-Id: I82fd518ba80aab4d8d9eba2cf51b2f2ca8fb6c48
diff --git a/build-debian-packages-telegraf.groovy b/build-debian-packages-telegraf.groovy
index 2870f40..39557b2 100644
--- a/build-debian-packages-telegraf.groovy
+++ b/build-debian-packages-telegraf.groovy
@@ -48,8 +48,8 @@
             }
             stage("build package") {
                 img.inside{
-                    sh("""wget https://storage.googleapis.com/golang/go1.8.1.linux-amd64.tar.gz &&
-                        tar xf go1.8.1.linux-amd64.tar.gz &&
+                    sh("""wget https://storage.googleapis.com/golang/go1.9.2.linux-amd64.tar.gz &&
+                        tar xf go1.9.2.linux-amd64.tar.gz &&
                         export GOROOT=\$PWD/go &&
                         export PATH=\$PATH:\$GOROOT/bin &&
                         export GOPATH=\$PWD &&