Merge pull request #1867 from saltstack/fixing_debian_arm64_repo_arch

Ensure the REPO_ARCH for Arm64 is correct.

Author: garethgreenaway

bootstrap-salt.sh

@@ -1439,8 +1439,8 @@ __check_dpkg_architecture() {
                 warn_msg="Support for arm64 is experimental, make sure the custom repository used has the expected structure and contents."
             else
                 # Saltstack official repository does not yet have arm64 metadata,
-                # use amd64 repositories on arm64, since all pkgs are arch-independent
-                __REPO_ARCH="amd64"
+                # use arm64 repositories on arm64, since all pkgs are arch-independent
+                __REPO_ARCH="arm64"
                 __REPO_ARCH_DEB="deb [signed-by=/usr/share/keyrings/salt-archive-keyring.gpg arch=$__REPO_ARCH]"
                 warn_msg="Support for arm64 packages is experimental and might rely on architecture-independent packages from the amd64 repository."
             fi