Fix WASM experimental release build failure

Author: BrettDong

.github/workflows/emscripten.yml

@@ -37,6 +37,8 @@ jobs:
   build_catatclysm:
     name: Build
     runs-on: ubuntu-latest
+    env:
+      CCACHE: 1
 
     steps:
     - uses: actions/checkout@v4

build-scripts/build-emscripten.sh

@@ -1,7 +1,13 @@
 #!/bin/bash
 set -exo pipefail
 
+CCACHE=${CCACHE:-0}
+
 emsdk install 3.1.51
-emsdk activate 3.1.51 ccache-git-emscripten-64bit
+emsdk activate 3.1.51
+if [ "$CCACHE" == "1" ]
+then
+    emsdk activate ccache-git-emscripten-64bit
+fi
 
-make -j`nproc` NATIVE=emscripten BACKTRACE=0 TILES=1 TESTS=0 RUNTESTS=0 RELEASE=1 CCACHE=1 LINTJSON=0 cataclysm-tiles.js
+make -j`nproc` NATIVE=emscripten BACKTRACE=0 TILES=1 TESTS=0 RUNTESTS=0 RELEASE=1 CCACHE="$CCACHE" LINTJSON=0 cataclysm-tiles.js