Add s390x arch build

rust using cross build tool
so it can build out s390x binary from x86 platform

fix: starship#5808

.github/workflows/release.yml

@@ -50,6 +50,10 @@ jobs:
           - target: aarch64-unknown-linux-musl
             os: ubuntu-latest
             name: starship-aarch64-unknown-linux-musl.tar.gz
+
+          - target: s390x-unknown-linux-gnu
+            os: ubuntu-latest
+            name: starship-s390x-unknown-linux-gnu.tar.gz
 
           - target: arm-unknown-linux-musleabihf
             os: ubuntu-latest

install/install.sh

@@ -18,7 +18,7 @@ SUPPORTED_TARGETS="x86_64-unknown-linux-gnu x86_64-unknown-linux-musl \
                   arm-unknown-linux-musleabihf x86_64-apple-darwin \
                   aarch64-apple-darwin x86_64-pc-windows-msvc \
                   i686-pc-windows-msvc aarch64-pc-windows-msvc \
-                  x86_64-unknown-freebsd"
+                  x86_64-unknown-freebsd s390x-unknown-linux-gnu"
 
 info() {
   printf '%s\n' "${BOLD}${GREY}>${NO_COLOR} $*"
@@ -225,13 +225,15 @@ detect_platform() {
 #   - i386
 #   - arm
 #   - arm64
+#   - s390x
 detect_arch() {
   arch="$(uname -m | tr '[:upper:]' '[:lower:]')"
 
   case "${arch}" in
     amd64) arch="x86_64" ;;
     armv*) arch="arm" ;;
     arm64) arch="aarch64" ;;
+    s390x) arch="s390x" ;;
   esac
 
   # `uname -m` in some cases mis-reports 32-bit OS as 64-bit, so double check