Add check_typo job (#9361)

To block merging pull requests which contain typo automatically.

tests/scripts/check_typo.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+
+# cd to the root directory of kubespray
+cd $(dirname $0)/../../
+
+rm ./misspell*
+
+set -e
+wget https://github.com/client9/misspell/releases/download/v0.3.4/misspell_0.3.4_linux_64bit.tar.gz
+tar -zxvf ./misspell_0.3.4_linux_64bit.tar.gz
+chmod 755 ./misspell
+git ls-files | xargs ./misspell -error