Update dependency containernetworking/plugins to v1.4.0

This MR contains the following updates:

Package	Type	Update	Change
containernetworking/plugins	ironbank-github	minor	v1.3.0 -> v1.4.0

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Release Notes

containernetworking/plugins

v1.4.0: CNI Plugins v1.4.0

Compare Source

New features:

• (#​832). tap: allow for a tap device to be created as a bridge port
• (#​914). [tuning] add ability to set tx queue len

Improvements:

• (#​969). Add CNI_NETNS_OVERRIDE
• (#​979). Add ndisc_notify in ipvlan for ipv6 ndp
• (#​974). macvlan: enable ipv6 ndisc_notify
• (#​950). Create IPAM files with 0600 permissions
• (#​924). More efficient iptables usage.
• (#​902). spoofcheck: Make use of go-nft's ApplyConfigEcho(). This is much faster
• (#​874). Add routes propagation for VRF plugin

Build:

• (#​982). Bump to golang:1.21-alpine
• (#​948). build: Use POSIX sh for shell scripts

Bug fixes:

• (#​954). macvlan cmdDel: handle deletion when master has been deleted
• (#​927). vrf: fix route filter to use output iface

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