Explicitly run the tests on macOS under zsh.

Author: postmodern

.github/workflows/ronin-dev.yml

@@ -86,7 +86,7 @@ jobs:
       - name: Configure env
         run: echo "SHUNIT2=$(command -v shunit2 2>/dev/null)" >> $GITHUB_ENV
       - name: Run tests
-        run: ./test/ronin_dev_test.sh
+        run: zsh ./test/ronin_dev_test.sh
 
   freebsd:
     runs-on: ubuntu-latest

.github/workflows/ronin-install.yml

@@ -86,7 +86,7 @@ jobs:
       - name: Configure env
         run: echo "SHUNIT2=$(command -v shunit2 2>/dev/null)" >> $GITHUB_ENV
       - name: Run tests
-        run: ./test/ronin_install_test.sh
+        run: zsh ./test/ronin_install_test.sh
 
   freebsd:
     runs-on: ubuntu-latest