Pin emscripten/emsdk Docker version

Fixes issues caused by incompatible changes in Emscripten since the
time that tree-sitter was built.

script/build-wasm

@@ -63,11 +63,11 @@ emcc=
 if which emcc > /dev/null && [[ "$force_docker" == "0" ]]; then
   emcc=emcc
 elif which docker > /dev/null; then
-  emcc="docker run    \
-    --rm              \
-    -v $(pwd):/src:Z  \
-    -u $(id -u)       \
-    emscripten/emsdk  \
+  emcc="docker run           \
+    --rm                     \
+    -v $(pwd):/src:Z         \
+    -u $(id -u)              \
+    emscripten/emsdk:2.0.11  \
     emcc"
 else
   echo 'You must have either `docker` or `emcc` on your PATH to run this script'

script/fetch-emscripten

@@ -2,7 +2,7 @@
 
 set -e
 
-EMSCRIPTEN_VERSION=2.0.9
+EMSCRIPTEN_VERSION=2.0.11
 
 mkdir -p target
 EMSDK_DIR="./target/emsdk"