Updating workflow to use Github CPU runner

Signed-off-by: Eric Kerfoot <[email protected]>

Author: ericspod

.github/workflows/test-modified.yml

@@ -37,10 +37,11 @@ jobs:
       shell: bash
       run: |
         python -c "import monai; monai.config.print_debug_info()"
+        git fetch origin main
         git diff --name-only origin/main | while read line
         do 
-            if [[ $line == *.ipynb ]]
-            then 
-                ./runner.sh -p " -and -wholename './${line}'"
-            fi
+          if [[ $line == *.ipynb ]]
+          then 
+            ./runner.sh -p " -and -wholename './${line}'"
+          fi
         done