github/actions: Add an on-merge job to Cornelis Networks workflow

Add a second job to the internal Cornelis Networks workflows. This is
triggered by merge events in the cornelisnetworks/libfabric-internal
repository, and skipped otherwise.

Signed-off-by: Jack Morrison <jack.morrison@cornelisnetworks.com>

.github/workflows/cn.yml

@@ -3,6 +3,11 @@ name: 'Cornelis'
 on:
   workflow_dispatch:
   pull_request:
+    types:
+      - opened
+      - reopened
+      - synchronize
+      - closed
     branches:
       - main
     paths-ignore:
@@ -16,5 +21,13 @@ concurrency:
 jobs:
   opx-ci:
     name: OPX CI
-    if: github.repository == 'cornelisnetworks/libfabric-internal'
+    if: |
+        github.repository == 'cornelisnetworks/libfabric-internal' && 
+        github.event.pull_request.merged != true
     uses: cornelisnetworks/libfabric-devel/.github/workflows/cn.yml@master
+  on-merge:
+    name: On-Merge
+    if: |
+        github.repository == 'cornelisnetworks/libfabric-internal' && 
+        github.event.pull_request.merged == true
+    uses: cornelisnetworks/libfabric-devel/.github/workflows/merge.yml@master