feat: include swift-overlay.conflist in the dropgz build (#1654)

include swift-overlay.conflist in the build

adds the azure-swift-overlay.conflist in the dropgz
build file so Azure CNI Overlay clusters can use the
dropgz to install the cni.

Signed-off-by: Tyler Lloyd <[email protected]>

Signed-off-by: Tyler Lloyd <[email protected]>
Co-authored-by: Tyler Lloyd <[email protected]>

Author: tyler-lloyd

dropgz/build/cni.Dockerfile

@@ -25,6 +25,7 @@ COPY dropgz .
 COPY --from=azure-ipam /azure-ipam/*.conflist pkg/embed/fs
 COPY --from=azure-ipam /azure-ipam/azure-ipam pkg/embed/fs
 COPY --from=azure-vnet /azure-container-networking/cni/azure-$OS-swift.conflist pkg/embed/fs/azure-swift.conflist
+COPY --from=azure-vnet /azure-container-networking/cni/azure-$OS-swift-overlay.conflist pkg/embed/fs/azure-swift-overlay.conflist
 COPY --from=azure-vnet /azure-container-networking/azure-vnet pkg/embed/fs
 COPY --from=azure-vnet /azure-container-networking/azure-vnet-telemetry pkg/embed/fs
 COPY --from=azure-vnet /azure-container-networking/azure-vnet-ipam pkg/embed/fs