delete ppc64le, s390x architecture in elixir 1.12, 1.13 (#107)

Author: getong

generate-stackbrew-library.sh

@@ -113,7 +113,7 @@ for version in "${versions[@]}"; do
 		variantArches=( amd64 arm32v7 arm64v8 i386 s390x ppc64le )
 
 		case "$version" in
-			1.11|1.10|1.9|1.8|1.7|1.6)
+			1.13|1.12|1.11|1.10|1.9|1.8|1.7|1.6)
 				variantArches=( ${variantArches[@]/ppc64le} )
 				variantArches=( ${variantArches[@]/s390x} )
 		esac