Bug 1903353 [wpt PR 46814] - Update wpt metadata, a=testonly

wpt-pr: 46814
wpt-type: metadata

testing/web-platform/meta/css/css-variables/variable-css-wide-keywords.html.ini

@@ -0,0 +1,17 @@
+[variable-css-wide-keywords.html]
+  expected:
+    if debug: CRASH
+  [`revert-layer` as a `var()` fallback for an unregistered custom property]
+    expected: FAIL
+
+  [`initial` as a `var()` fallback for an inheriting registered custom property]
+    expected: FAIL
+
+  [`inherit` as a `var()` fallback for a non-inheriting registered custom property]
+    expected: FAIL
+
+  [`revert-layer` as a `var()` fallback for a non-inheriting registered custom property]
+    expected: FAIL
+
+  [`revert-layer` as a `var()` fallback for an inheriting registered custom property]
+    expected: FAIL