Update main.fmf - use import method to get ALL the phases from our internal main.fmf

main.fmf

@@ -1,10 +1,5 @@
-summary: Run internal libxml2
+plan:
-discover:
+    import:
-    - name: Internal libxml2 gating tests
+        url: https://gitlab.cee.redhat.com/desktopqe/libxml2.git
-      how: fmf
+        name: /plan
-      url: https://gitlab.cee.redhat.com/desktopqe/libxml2.git
+        ref: rhel-9
-      path: /
-      ref: rhel-9
-      filter: 'tag:gate'
-execute:
-    how: tmt