Update wasm-spec.

Rolling v8/test/wasm-js/data: https://chromium.googlesource.com/external/github.com/WebAssembly/spec/+log/2f5d8e7..d51ec1b

Reject the promise if reading the imports fails. (Ms2ger)
https://chromium.googlesource.com/external/github.com/WebAssembly/spec/+/d51ec1b

TBR=ahaas@chromium.org,clemensh@chromium.org

Change-Id: I1af73510bc61e7c5cc9a68ed866a0cc7ef86e4d4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1530193Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60316}

DEPS

@@ -155,7 +155,7 @@ deps = {
     'dep_type': 'cipd',
   },
   'v8/test/wasm-js/data':
-    Var('chromium_url') + '/external/github.com/WebAssembly/spec.git' + '@' + '2f5d8e761b67325c6dd3501b56b603199264572b',
+    Var('chromium_url') + '/external/github.com/WebAssembly/spec.git' + '@' + 'd51ec1bdb865d2c4c9cabebef64dd02da9883f53',
 }
 
 recursedeps = [