fix: java.sh -> babashka.process/shell

Previously, the rebuild command would not report to stdout/stderr.

scripts/sydnix-cli/src/sydnix_cli/commands/rebuild.clj

@@ -1,6 +1,6 @@
 (ns sydnix-cli.commands.rebuild
   (:require
-   [clojure.java.shell :refer [sh]]
+   [babashka.process :as p]
    [sydnix-cli.commands.help :refer [adorn-with-help-option*]]))
 
 (def command-options-spec
@@ -16,7 +16,7 @@
                 (or args ["switch"])
                 ["--flake" (:flake opts)])]
     (apply println "$" rebuild-cmd)
-    (apply sh rebuild-cmd)))
+    (apply p/shell {:continue true} rebuild-cmd)))
 
 (def commands
   [{:cmds ["rebuild"]