Update wasm-spec.

Rolling v8/test/wasm-js/data: https://chromium.googlesource.com/external/github.com/WebAssembly/spec/+log/2a28a92..d14d538

[spec] More precise Unicode terminology (#1002) (Andreas Rossberg)
https://chromium.googlesource.com/external/github.com/WebAssembly/spec/+/d14d538

[test] Alignment and offset with overlong leb128 (#998) (Wanming Lin)
https://chromium.googlesource.com/external/github.com/WebAssembly/spec/+/4dce956

[spec] Add paragraph break for more emphasis (#1001) (Andreas Rossberg)
https://chromium.googlesource.com/external/github.com/WebAssembly/spec/+/3099a7b

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

Change-Id: Ifc803d75840ee8389f5634ed090992f4d6934837
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1571126Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#60889}

DEPS

@@ -236,7 +236,7 @@ deps = {
     'dep_type': 'cipd',
   },
   'v8/test/wasm-js/data':
-    Var('chromium_url') + '/external/github.com/WebAssembly/spec.git' + '@' + '2a28a928bf385bdf375ca09bebde14627c6c17a1',
+    Var('chromium_url') + '/external/github.com/WebAssembly/spec.git' + '@' + 'd14d538e5fccdc03a02948963addad10ad45b50d',
   'v8/third_party/perfetto':
     Var('android_url') + '/platform/external/perfetto.git' + '@' + '21a33afeef568f72668acf77668a32307a363d6e',
   'v8/third_party/protobuf':