Install Ninja-build

Signed-off-by: anhnghcl <anh_ng@hcl.com>
Change-Id: Id14cdeb9ce5bbc3e9f467471b1d24ba07549a7f9
diff --git a/jjb/shell/install-git-pistache.sh b/jjb/shell/install-git-pistache.sh
index 9ce0261..07c7746 100755
--- a/jjb/shell/install-git-pistache.sh
+++ b/jjb/shell/install-git-pistache.sh
@@ -27,7 +27,7 @@
 export PATH=$PATH:~/.local/bin
 export LIBRARY_PATH=/usr/lib/x86_64-linux-gnu
 
-sudo apt-get update && sudo apt-get -y install rapidjson-dev libssl-dev
+sudo apt-get update && sudo apt-get -y install rapidjson-dev libssl-dev ninja-build
 python3 -m pip install meson