chore: build using commit rather than branch

docker/Dockerfile

@@ -28,8 +28,9 @@ RUN ninja && ninja install
 # Clone SWI-Prolog.  Only make a shallow clone and only clone the
 # submodules we need at depth 1.
 WORKDIR /
-ARG SWIPL_VERSION
-RUN git clone --depth 1 https://github.com/SWI-Prolog/swipl-devel --branch V$SWIPL_VERSION
+ARG SWIPL_COMMIT
+RUN git clone https://github.com/SWI-Prolog/swipl-devel
+RUN git checkout $SWIPL_COMMIT
 RUN cd swipl-devel && git submodule update --init --depth 1 -j 100 \
     packages/chr packages/clib packages/clpqr packages/http packages/nlp \
     packages/pcre packages/plunit packages/sgml packages/RDF \

package.json

@@ -45,7 +45,7 @@
     "dist/**/*.wasm"
   ],
   "scripts": {
-    "build:wasm-docker:build": "docker build --build-arg SWIPL_VERSION=$npm_package_config_swipl_version --build-arg EMSDK_VERSION=$npm_package_config_emsdk_version --build-arg ZLIB_VERSION=$npm_package_config_zlib_version --build-arg PCRE2_NAME=$npm_package_config_pcre2_name -t swipl-wasm-image docker",
+    "build:wasm-docker:build": "docker build --build-arg SWIPL_VERSION=$npm_package_config_swipl_version SWIPL_COMMIT=$npm_package_config_swipl_commit --build-arg EMSDK_VERSION=$npm_package_config_emsdk_version --build-arg ZLIB_VERSION=$npm_package_config_zlib_version --build-arg PCRE2_NAME=$npm_package_config_pcre2_name -t swipl-wasm-image docker",
     "build:wasm-docker:create": "docker create --name swipl-wasm swipl-wasm-image",
     "build:wasm-docker:remove": "docker rm swipl-wasm",
     "build:wasm-docker:extract:data": "docker cp swipl-wasm:/swipl-devel/build.wasm/src/swipl-web.data dist/swipl/swipl-web.data",