Add github-token input to readme #1431

Job	Run time
channel (macos-15-intel)	2m 56s
channel (ubuntu-24.04-arm)	25s
context (macos-15-intel)	2m 55s
context (windows-latest)	41s
channel (windows-latest)	33s
context (ubuntu-24.04-arm)	26s
daemon-config (ubuntu-24.04-arm)	22s
context (ubuntu-latest)	23s
daemon-config (macos-15-intel)	2m 57s
channel (ubuntu-latest)	26s
daemon-config (ubuntu-latest)	21s
main (ubuntu-24.04-arm)	23s
set-host	20s
main (ubuntu-latest, type=image,tag=27.3.1)	28s
main (ubuntu-24.04-arm, v27.3.1)	26s
daemon-config (windows-latest)	25s
main (ubuntu-latest, v27.3.1)	22s
main (ubuntu-24.04-arm, type=image,tag=27.3.1)	29s
main (ubuntu-latest)	22s
main (macos-15-intel)	2m 56s
build-macos (macos-15-intel)	2m 57s
main (windows-latest, type=image,tag=27.3.1)	38s
undock-regctl-version (v0.8.2)	22s
rootless	23s
undock-regctl-version	25s
tcp (windows-latest)	28s
build-windows	57s
lima-start-args	6m 37s
undock-regctl-version (v0.9.0, v0.8.2)	23s
tcp (ubuntu-24.04-arm)	25s
main (macos-15-intel, v27.3.1)	2m 57s
build-linux (containerd-tarball)	37s
tcp (macos-15-intel)	6m 38s
main (windows-latest, v27.3.1)	30s
undock-regctl-version (v0.9.0)	22s
docker-29 (ubuntu-latest)	24s
main (macos-15-intel, type=image,tag=27.3.1)	2m 57s
docker-29 (macos-15-intel)	6m 37s
docker-29 (windows-latest)	44s
build-linux (containerd-system)	34s
tcp (ubuntu-latest)	23s
main (windows-latest)	29s
	55m 23s

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