Auto merge of #29916 - mrobinson:rename-meta-directories, r=atbrakhi

Rename metadata directories

Rename metadata directories and update all references. This is in preparation
for making Layout 2020 the default layout system.

This does the following renames:
 - `tests/wpt/metadata` → `tests/wpt/meta-legacy-layout`
 - `tests/wpt/metadata-layout-2020` → `tests/wpt/meta`
 - `tests/wpt/mozilla/meta` → `tests/wpt/mozilla/meta-legacy-layout`
 - `tests/wpt/mozilla/meta-layout-2020` → `tests/wpt/mozilla/meta`

---
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- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes do not require tests because they change how tests are run.

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1 files changed, 2 insertions, 2 deletions

diff --git a/python/wpt/update.py b/python/wpt/update.py
index 377ba06e3ce..a31598c09fb 100644
--- a/python/wpt/update.py
+++ b/python/wpt/update.py
@@ -5,7 +5,7 @@
 
 import os
 
-from . import WPT_PATH, update_args_for_layout_2020
+from . import WPT_PATH, update_args_for_legacy_layout
 from . import importer
 
 
@@ -20,7 +20,7 @@ def update_tests(**kwargs):
     kwargs["store_state"] = False
 
     importer.check_args(kwargs)
-    update_args_for_layout_2020(kwargs)
+    update_args_for_legacy_layout(kwargs)
 
     return 1 if not importer.run_update(**kwargs) else 0