Merge branch 'CNT-4260/add-packaging-scan-and-release' into 'main'

Add scan and release steps for packaging image

See merge request nvidia/container-toolkit/container-toolkit!384

.nvidia-ci.yml

@@ -181,6 +181,13 @@ scan-ubi8-arm64:
     - image-ubi8
     - scan-ubi8-amd64
 
+scan-packaging:
+  extends:
+    - .dist-packaging
+    - .scan
+  needs:
+    - image-packaging
+
 # Define external release helpers
 .release:ngc:
   extends:
@@ -239,3 +246,8 @@ release:ngc-ubi8:
   extends:
     - .dist-ubi8
     - .release:ngc
+
+release:ngc-packaging:
+  extends:
+    - .dist-packaging
+    - .release:ngc