feat(config/job): Add image setter

We must be able to update image name

Signed-off-by: Denys Fedoryshchenko <[email protected]>

kernelci/config/job.py

@@ -50,6 +50,11 @@ def image(self):
         """Runtime environment image name"""
         return self._image
 
+    @image.setter
+    def image(self, value):
+        """Set the runtime environment image name"""
+        self._image = value
+
     @property
     def params(self):
         """Arbitrary parameters passed to the template"""