test: disable fail-fast in matrix builds to allow partial success

Author: chrisburr

.github/workflows/basic.yml

@@ -21,6 +21,7 @@ jobs:
     timeout-minutes: 10
 
     strategy:
+      fail-fast: false
       matrix:
         python: 
           - 2.7.18
@@ -51,6 +52,7 @@ jobs:
     timeout-minutes: 10
 
     strategy:
+      fail-fast: false
       matrix:
         python: 
           - 2.7.18
@@ -75,6 +77,7 @@ jobs:
     timeout-minutes: 10
 
     strategy:
+      fail-fast: false
       matrix:
         python: 
           - 2.7.18