use more bash

Author: sgillen

.github/workflows/debian-packages.yml

@@ -102,6 +102,7 @@ jobs:
           pip3 install -r requirements.txt
           python3 -m pip install -U bloom
         fi
+      shell: bash
 
     - name: Build workspace
       run: |

.github/workflows/ros-tests.yml

@@ -54,6 +54,7 @@ jobs:
         else
           pip3 install -r requirements.txt
         fi
+      shell: bash
 
     - name: Build packages
       run: |