I didn't have wasm-pack installed, let's fix that

query-engine/query-engine-wasm/build.sh

@@ -13,6 +13,14 @@ OUT_NPM_NAME="@prisma/query-engine-wasm"
 # This little `sed -i` trick below is a hack to publish "@prisma/query-engine-wasm"
 # with the same binding filenames currently expected by the Prisma Client.
 sed -i '' 's/name = "query_engine_wasm"/name = "query_engine"/g' Cargo.toml
+# Check if wasm-pack is installed
+if ! command -v wasm-pack &> /dev/null
+then
+    echo "wasm-pack could not be found, installing now..."
+    # Install wasm-pack
+    # Replace with the appropriate installation command for your system
+    curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh
+fi
 wasm-pack build --dev --target $OUT_TARGET
 sed -i '' 's/name = "query_engine"/name = "query_engine_wasm"/g' Cargo.toml