Need quotes around 3.10 python version

Otherwise it's interpreted as 3.1

Author: billsacks

.github/workflows/srt.yml

@@ -19,7 +19,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [ 3.10, 3.12, 3.x ]
+        python-version: [ "3.10", 3.12, 3.x ]
     env:
       CC: mpicc
       FC: mpifort