chore: update ubuntu version to 25.10

- ubuntu base image from 25.04 to 25.10
- formatting consistency

Signed-off-by: Hareesh Puthalath <hareeshp@nvidia.com>

Author: hareeshpc

Dockerfile.ovn-kubernetes.fedora

@@ -36,7 +36,7 @@ RUN CGO_ENABLED=0 GOOS=${TARGETOS} GOARCH=${TARGETARCH} make -C ovn-kubernetes/d
 # Main Ubuntu Image Stage      #
 #################################
 
-FROM ubuntu:25.04
+FROM ubuntu:25.10
 
 ARG TARGETARCH
 ARG TARGETOS=linux
@@ -81,4 +81,5 @@ LABEL io.k8s.display-name="ovn-kubernetes" \
       io.k8s.description="ovnkube ubuntu image"
 
 WORKDIR /root
-ENTRYPOINT /root/ovnkube.sh
+ENTRYPOINT /root/ovnkube.sh
+

Dockerfile.ovn-kubernetes.ubuntu

@@ -9,6 +9,7 @@
 # So this file will change over time.
 
 ARG BUILDER_IMAGE
+
 #############################################
 # Stage to build OVN Kubernetes from Source #
 #############################################
@@ -81,3 +82,4 @@ LABEL io.k8s.display-name="ovn-kubernetes" \
 
 WORKDIR /root
 ENTRYPOINT /root/ovnkube.sh
+