Update test-pymadng.yml to MAD 0.9.8

Author: jgray-19

.github/workflows/test-pymadng.yml

@@ -33,8 +33,8 @@ jobs:
     - name: Get MAD Binaries
       run: |
         mkdir ./src/pymadng/bin 
-        curl https://madx.web.cern.ch/madx/releases/madng/0.9/mad-linux-0.9.7 -o ./src/pymadng/bin/mad_Linux
-        curl https://madx.web.cern.ch/madx/releases/madng/0.9/mad-macos-0.9.7 -o ./src/pymadng/bin/mad_Darwin
+        curl https://madx.web.cern.ch/madx/releases/madng/0.9/mad-linux-0.9.8 -o ./src/pymadng/bin/mad_Linux
+        curl https://madx.web.cern.ch/madx/releases/madng/0.9/mad-macos-0.9.8 -o ./src/pymadng/bin/mad_Darwin
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip