Updating yml files to run test actions only when files in Code and tests are modified. (SimVascular#394)

Co-authored-by: Aaron Brown <71424733+aabrown100-git@users.noreply.github.com>
Co-authored-by: Dave Parker <dvdpax@gmail.com>

Author: 3 people

.github/workflows/test_macos.yml

@@ -1,9 +1,15 @@
 name: macos-latest
 on:
-  push:
+  push: 
+    paths:
+      - 'Code/**'
+      - 'tests/**'
+      - '.github/**'
   pull_request:
-    paths-ignore:
-      - '**.md'
+    paths:
+      - 'Code/**'
+      - 'tests/**'
+      - '.github/**'
 jobs:
   test:
     runs-on: macos-latest

.github/workflows/test_ubuntu.yml

@@ -1,9 +1,15 @@
 name: ubuntu-latest
 on: 
   push: 
+    paths:
+      - 'Code/**'
+      - 'tests/**'
+      - '.github/**'
   pull_request:
-    paths-ignore:
-      - '**.md'
+    paths:
+      - 'Code/**'
+      - 'tests/**'
+      - '.github/**'
 jobs:
   test:
     runs-on: ubuntu-latest