Replace some of std.ChildProcess with bun.spawnSync (#9513)

* Replace some of std.ChildProcess with bun.spawnSync

* Update process.zig

* Fix some build errors

* Fix linux build

* Keep error

* Don't print a mesasge in this case

* Update spawn.test.ts

* Make `bun install` faster on Linux

* Comments + edgecases

* Fix the tests

* Add bun install launch.json

---------

Co-authored-by: Jarred Sumner <709451+Jarred-Sumner@users.noreply.github.com>
Co-authored-by: Zack Radisic <zack@theradisic.com>

.vscode/launch.json

@@ -404,6 +404,20 @@
         "action": "openExternally"
       }
     },
+    {
+      "type": "lldb",
+      "request": "launch",
+      "name": "bun install [folder]",
+      "program": "${workspaceFolder}/build/bun-debug",
+      "args": ["install"],
+      "cwd": "${fileDirname}",
+      "env": {
+        "FORCE_COLOR": "1",
+        "BUN_DEBUG_QUIET_LOGS": "1",
+        "BUN_GARBAGE_COLLECTOR_LEVEL": "2"
+      },
+      "console": "internalConsole"
+    },
     {
       "type": "lldb",
       "request": "launch",