Fix emscripten_releases directory name to match git repo name
Fix emscripten_releases directory name to match git repo name

Change-Id: I7c21a84ad1e2eccbb147b47d8372d3daefda7beb
Recipe-Nontrivial-Roll: build
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/1570846
Reviewed-by: Sergiy Belozorov <aadb4a11584aa9878242ea5d9e4b7e3429654579@chromium.org>
Reviewed-by: Nodir Turakulov <ef4933a197ef7b4b3f55f1bec4942aead3637a2a@chromium.org>
Commit-Queue: Nodir Turakulov <ef4933a197ef7b4b3f55f1bec4942aead3637a2a@chromium.org>
Auto-Submit: Derek Schuff <3cf7ba45f835c4cf8b5fe7d6a48fa95fd7df4df7@chromium.org>

CoherentLabs/depot_tools,CoherentLabs/depot_tools