docs: update authors file
docs: update authors file

Move Alexei into authors list for his recent patch and update his
email address to the one from the patch. Also add Ian to the list
for his patches.

Signed-off-by: Daniel Borkmann <3d0f3b9ddcacec30c4008c5e030e6c13a478cb4f@cilium.io>

tklauser/cilium,scanf/cilium,michi-covalent/cilium,cilium/cilium,cilium/cilium,gumpt/cilium,tgraf/cilium,michi-covalent/cilium,tklauser/cilium,michi-covalent/cilium,gumpt/cilium,gumpt/cilium,tklauser/cilium,michi-covalent/cilium,gumpt/cilium,eloycoto/cilium,tklauser/cilium,cilium/cilium,mskarbek/cilium,mskarbek/cilium,cilium-team/cilium,eloycoto/cilium,gumpt/cilium,eloycoto/cilium,tgraf/cilium,tgraf/cilium,cilium/cilium,tgraf/cilium,eloycoto/cilium,mskarbek/cilium,cilium-team/cilium,eloycoto/cilium,mskarbek/cilium,scanf/cilium,scanf/cilium,tklauser/cilium,eloycoto/cilium,eloycoto/cilium,tgraf/cilium,gumpt/cilium,scanf/cilium,scanf/cilium,tgraf/cilium,scanf/cilium,mskarbek/cilium,scanf/cilium,gumpt/cilium,cilium/cilium,michi-covalent/cilium,mskarbek/cilium