Update geant4 version v11.3.0 and readme

Author: stewartboogert

.github/workflows/main.yaml

@@ -18,7 +18,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        geant4-version: ["v10.7.4", "v11.0.4", "v11.1.3", "v11.2.2"]
+        geant4-version: ["v10.7.4", "v11.0.4", "v11.1.3", "v11.2.2", "v11.3.0"]
         os: [macOS-13, macOS-14, macOS-15]
 
     steps:

README.md

@@ -9,4 +9,4 @@
  * Tag 
  * Push (inc tag)
 
-Workflows run on push and will create a release and upload artifacts
+Workflows run on tag-push and will create a release and upload artifacts