Remove shallow clone xeus-cpp

Author: mcbarton

.github/workflows/emscripten.yml

@@ -933,7 +933,7 @@ jobs:
         .\emsdk\emsdk activate ${{matrix.emsdk_ver}}
         .\emsdk\emsdk_env.ps1
         micromamba activate CppInterOp-wasm
-        git clone --depth=1 https://github.com/mcbarton/xeus-cpp.git
+        git clone https://github.com/mcbarton/xeus-cpp.git
         cd .\xeus-cpp
         git checkout Enable-Windows-Emscripten-build 
         mkdir build