Bumped emscripten image tag due to added helper npm script

docker-bake.hcl

@@ -83,7 +83,7 @@ target "tox-test-runner" {
 
 target "emsdk" {
   dockerfile = "Dockerfile.emscripten"
-  tags = generate-tags("emsdk", "${EMSCRIPTEN_VERSION}-2")
+  tags = generate-tags("emsdk", "${EMSCRIPTEN_VERSION}-3")
   cache-from = generate-cache-from("emsdk", "${EMSCRIPTEN_VERSION}")
   cache-to = generate-cache-to("emsdk", "${EMSCRIPTEN_VERSION}")
   args = {

scripts/bash/build_emscripten_image.sh

@@ -11,5 +11,5 @@ export DOCKER_BUILDKIT=1
 
 docker build --target=supplemented_emscripten_builder \
   --build-arg "EMSCRIPTEN_VERSION=${EMSDK_VERSION}" \
-  --tag "${REGISTRY}emsdk:${EMSDK_VERSION}-2" \
+  --tag "${REGISTRY}emsdk:${EMSDK_VERSION}-3" \
   --file "${SRCDIR}/Dockerfile.emscripten" "${SRCDIR}"