fix: create/delete order might lead ip conflict

ci: do not push image when pr

clean up all white noise

Signed-off-by: Xiang Dai <long0dai@foxmail.com>

security: update yum repo

fix node's annotations overwrited incorrectly

fix #376

Fix typo in multi-nic.md

s/eht0/eth0

Userspace-CNI updates in dpdk.md

Show users how to mount a directory containing only the socket files
that are relevant to a pod.

Some small tidy up of the doc.

Reduce DPDK image size

Blank lines within a RUN result in empty continuation line warning
during Docker build. Remove these empty lines.

security: update loopback to fix CVE

Script checks if CONFIG_FILE exists, if not create one with default
values. However, if /opt/ovs-config/ directory does not exist then
the print command fails. mkdir -p creates dir if it does not exist.

Now multistage build
Changed DPDK from make to meson-ninja build
Configured out some unused DPDK options
Image size reduced from 3.2GB to 724MB

fix: add back privilege for ipv6

Config support for OVS-DPDK

security: add trivy scan and fix image CVEs

refactor: use ovs.Exec replace raw command

chore: add gosec to audit code security

chore: prepare for release 1.2

chore: prepare for release 1.2

Add OVS-DPDK support, for issue 104