GH-955 - Update integration builds.

Author: odrotbohm

.github/workflows/integration.yaml

@@ -10,10 +10,9 @@ jobs:
     strategy:
       matrix:
         boot:
+        - '3.1.12'
         - '3.2.12'
-        - '3.2.13-SNAPSHOT'
         - '3.3.6'
-        - '3.3.7-SNAPSHOT'
         - '3.4.1-SNAPSHOT'
         jmolecules:
         - '2023.2.0'