Bump hyperion to 4.7.3 (#807)

### Description

Please explain the changes you made here.

### Checklist

- [ ] Created tests which fail without the change (if possible)
- [ ] All tests passing
- [ ] Extended the documentation, if necessary

Author: Rotheem

pyproject.toml

@@ -6,7 +6,7 @@ authors = [{ name = "AEECL ECLAIR" }]
 
 # Hyperion follows Semantic Versioning
 # https://semver.org/
-version = "4.7.2"
+version = "4.7.3"
 minimal-titan-version-code = 139
 requires-python = ">= 3.11, < 3.13"