fixup ninja install for alpine

Author: vszakats

_ci-linux-alpine.sh

@@ -35,7 +35,7 @@ fi
 
 # https://pkgs.alpinelinux.org/packages
 # shellcheck disable=SC2086
-apk add --no-cache curl git gpg gpg-agent rsync build-base cmake ninja-build python3 \
+apk add --no-cache curl git gpg gpg-agent rsync build-base cmake samurai python3 \
   zip tar xz jq openssl sed ${extra}
 
 ./_build.sh