[tint] Fix typo in JSON output key "dimensions"

Change-Id: I99feffdabf879dc01346cd1fc1b748790325c4c3
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/293695
Reviewed-by: James Price <jrprice@google.com>
Commit-Queue: James Price <jrprice@google.com>
Reviewed-by: dan sinclair <dsinclair@chromium.org>

src/tint/cmd/info/main.cc

diff --git a/src/tint/cmd/info/main.cc b/src/tint/cmd/info/main.cc
index bee001a..843b37d 100644
--- a/src/tint/cmd/info/main.cc
+++ b/src/tint/cmd/info/main.cc
@@ -191,7 +191,7 @@
                       << "\"size\": " << binding.size << ",\n"
                       << "\"resource_type\": \""
                       << tint::cmd::ResourceTypeToString(binding.resource_type) << "\",\n"
-                      << "\"dimemsions\": \"" << tint::cmd::TextureDimensionToString(binding.dim)
+                      << "\"dimensions\": \"" << tint::cmd::TextureDimensionToString(binding.dim)
                       << "\",\n"
                       << "\"sampled_kind\": \""
                       << tint::cmd::SampledKindToString(binding.sampled_kind) << "\",\n"