Nominate Iris Ding for istio-cni maintainer

[linsun]

Similar as #1314, I want to nominate @irisdingbj for her outstanding contribution to this component. Opening this issue to discuss this openly. @irisdingbj feel free to add your contributions for recording purpose.

[linsun]

cc @istio/wg-networking-maintainers for comment

[nrjpoddar]

Approved from my end

[linsun]

tagging leads to comment @stevenctl @ramaraochavali @lizan @howardjohn

[ramaraochavali]

I am fine adding @irisdingbj as cni maintainer

[linsun]

Added this to the agenda of tmr's WG meeting.

[linsun]

Notes from today's WG meeting: @irisdingbj we appreciate your interest in serving as istio-cni maintainer and we recognized your substantial contribution to Istio, which is also reflected that you are currently maintainers in multiple groups of Istio. We would love to see more contributions from you on the networking area PRs and reviewing other's networking area PRs before we can approve this. Hope to see you shine more in the community!