cli: Pass Path into run API

Since chromium:3876527 we can pass in Paths to the run API instead of
wrapping it as str's explicitly.

BUG=b:241961281
TEST=cros deploy

Cq-Depend: chromium:3876527
Change-Id: I26c0969828fe30d2be757b3f725bc31d79573b11
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/chromite/+/3885416
Tested-by: Jae Hoon Kim <kimjae@chromium.org>
Commit-Queue: Jae Hoon Kim <kimjae@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
diff --git a/cli/deploy.py b/cli/deploy.py
index 81a20e8..78c8485 100644
--- a/cli/deploy.py
+++ b/cli/deploy.py
@@ -1093,7 +1093,7 @@
 
     # Copy metadata to device.
     dest_meta_dir = Path('/') / dlc_lib.DLC_META_DIR / dlc_id / dlc_package
-    device.run(['mkdir', '-p', str(dest_meta_dir)])
+    device.run(['mkdir', '-p', dest_meta_dir])
     src_meta_dir = os.path.join(sysroot, dlc_lib.DLC_BUILD_DIR, dlc_id,
                                 dlc_package, dlc_lib.DLC_TMP_META_DIR)
     device.CopyToDevice(src_meta_dir + '/',