Re-build of dev-wasm32 as 1.0.3

Update build script to ensure the WASM Docker image is rebuilt
every time (relies on Docker's cache) and therefore the version
of emscripten is up-to-date.

(Version 1.0.2 of dev-wasm32 package used an old emscripten.)

build/wasm.sh

@@ -34,15 +34,15 @@ if [ "$VERSION_VIPS" != "$VERSION_VIPS_UPSTREAM" ]; then
 fi
 
 # Create container with emscripten
-if [ -z "$(docker images -q ${TAG})" ]; then
-  pushd "${DIR}"
-  docker build -t "${TAG}" .
-  popd
-fi
+pushd "${DIR}"
+docker build -t "${TAG}" .
+popd
 
 # Build libvips and dependencies as static Wasm libraries via emscripten
 if [ ! -d "$DIR/build/target/lib" ]; then
   docker run --rm -v "$PWD/${DIR}":/src "${TAG}" -c "./build.sh --disable-bindings --disable-modules --disable-jxl --enable-libvips-cpp"
+else
+  echo "Skipping build: found existing files in $DIR/build/target"
 fi
 
 # Copy only the files we need

npm/dev-wasm32/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-libvips-dev-wasm32",
-  "version": "1.0.2",
+  "version": "1.0.3",
   "description": "Header files and static wasm32 libraries for libvips and dependencies to build sharp as wasm32",
   "author": "Lovell Fuller <[email protected]>",
   "homepage": "https://sharp.pixelplumbing.com",