Allow debugging wasm

Author: vgvassilev

.github/workflows/main.yml

@@ -40,11 +40,6 @@ jobs:
           environment-file: environment-dev.yml
           environment-name: xeus-cpp
 
-      - name: mamba update all
-        shell: bash -l {0}
-        run: |
-          $HOME/micromamba-bin/micromamba update --all
-
       - name: install cxx compiler
         shell: bash -l {0}
         run: |
@@ -201,3 +196,8 @@ jobs:
             -DCMAKE_FIND_ROOT_PATH_MODE_PACKAGE=ON            \
             ..
           EMCC_CFLAGS='-sERROR_ON_UNDEFINED_SYMBOLS=0' emmake make -j5
+      - name: Setup tmate session
+        if: ${{ failure() && runner.debug }}
+        uses: mxschmitt/action-tmate@v3
+        # When debugging increase to a suitable value!
+        timeout-minutes: 30