Build the WebAssembly module in CI - #13

buildx failed with: ERROR: failed to build: failed to solve: process "/bin/sh -c mkdir -p /app/wasm && emcc -sMEMORY64=1 -sEMULATE_FUNCTION_POINTER_CASTS=1 -O1 /app/core/c-src/bindings.c /root/MobilityDB/build/meos/libmeos.a /root/MobilityDB/build/pgtypes/libpgtypes.a /root/MobilityDB/build/postgis/libpostgis.a /root/geos/build/lib/libgeos.a /root/geos/build/lib/libgeos_c.a /root/PROJ/build/lib/libproj.a /root/sqlite3/libsqlite3.a /root/gsl-wasm/lib/libgsl.a /root/gsl-wasm/lib/libgslcblas.a /root/json-c-install/lib/libjson-c.a /root/h3-install/lib/libh3.a -I/root/meos-install/include -I/root/geos/include -I/root/geos/build/capi -I/root/MobilityDB/pgtypes -I/root/MobilityDB/build/pgtypes -I/root/MobilityDB/build/postgis/liblwgeom -I/root/MobilityDB/build/postgis -I/root/MobilityDB/postgis -I/root/MobilityDB/postgis/liblwgeom -I/root/PROJ/src -I/root/json-c-install/include -I/root/gsl-wasm/include -I/root/h3-install/include --embed-file /usr/share/zoneinfo@/usr/share/zoneinfo --embed-file /root/MobilityDB/meos/src/geo/spatial_ref_sys.csv@/usr/local/share/spatial_ref_sys.csv --embed-file /root/PROJ/build/data/proj.db@/usr/local/share/proj/proj.db -o /app/wasm/meos.js -s MODULARIZE=1 -s EXPORT_NAME=\"createMeosModule\" -s EXPORTED_RUNTIME_METHODS='[\"ccall\",\"cwrap\",\"UTF8ToString\",\"allocate\",\"ALLOC_NORMAL\"]' -s ALLOW_MEMORY_GROWTH=1 -s STACK_SIZE=8MB -s ENVIRONMENT='web,node' -s EXPORT_ES6=1 -Wno-incompatible-pointer-types -Wno-int-conversion" did not complete successfully: exit code: 1