Add konflux as possible initiator (#2947)

Expected usage: Integration testing via TF  -https://redhat-appstudio.github.io/docs.appstudio.io/Documentation/main/how-to-guides/testing_applications/proc_adding_an_integration_test/

spec/context/initiator.fmf

@@ -31,6 +31,10 @@ description: |
         Errata Workflow Automation jobs.
         To be implemented.
 
+    konflux
+        Application builder.
+        To be implemented.
+
     Each service, pipeline or tool is responsible to set the value
     to its name. For manual testing ``--context initiator=human``
     is expected on the command line.