Revert "Fix default shell"

This reverts commit 990e207.

Author: Flova

.github/workflows/ci.yml

@@ -7,9 +7,7 @@ on:
 jobs:
   build:
     runs-on: ubuntu-latest
-    defaults:
-      run:
-        shell: bash
+
     steps:
       - name: Cancel outdated jobs
         uses: fkirc/skip-duplicate-actions@v5
@@ -33,10 +31,10 @@ jobs:
           cache: true
 
       # Remove comments to spawn an interactive debugging ssh shell in the ci
-      #- name: Setup tmate session
-      #  uses: mxschmitt/action-tmate@v3
-      #  with:
-      #    detached: false
+      - name: Setup tmate session
+        uses: mxschmitt/action-tmate@v3
+        with:
+          detached: false
 
       - name: Build
         run: pixi run build --executor sequential --packages-up-to bitbots_msgs