Set shell

.github/actions/test-external-links/action.yml

@@ -15,19 +15,23 @@ runs:
             cache: 'npm'
 
         - name: Install Lynx
+          shell: ${{ env.shell }}
           run: |
             sudo apt-get update
             sudo apt-get install -y lynx
   
         - name: Build documentation
+          shell: ${{ env.shell }}
           run: |
             npm i
             npm run-script build-local
   
-        - run: |
+        - shell: ${{ env.shell }}
+          run: |
             echo "temp_file=$(mktemp)" >> $GITHUB_ENV
   
         - name: Extract links
+          shell: ${{ env.shell }}
           run: |
             # Extract all unique URLs
             # Faster than potentially checking the same link on multiple pages
@@ -36,6 +40,7 @@ runs:
             done
   
         - name: Check links
+          shell: ${{ env.shell }}
           run: |
             distinct_urls=$(sort -u "${temp_file}")