Add permissions for CI test github action #175

Job	Run time
pre-check	4m 21s
bundle-commands	4m 34s
build-all-delta-packs	5m 17s
build-delta-manifests	5m 12s
clean-rebuild	4m 51s
build-multiple-delta-packs	5m 13s
config-conversion	3m 31s
content-chroot	5m 20s
contentsize-check	4m 50s
create-mix-with-custom-content	5m 57s
create-mix-with-blended-content	6m 47s
update-mix-add-remove-bundles	13m 25s
clr-installer-config	3m 17s
customize-os-release	5m 47s
export-flag	4m 33s
manual-format-bump-flow	4m 52s
manual-upstream-format-bump-flow	4m 50s
no-delta-manifests-over-format-bump	4m 49s
no-delta-packs-over-format-bump	4m 55s
no-state-variables-in-full	4m 52s
state-conversion	5m 8s
test-format-bump	5m 26s
upstream-format-bump	4m 28s
update-mixver-offline	3m 22s
	2h 5m 37s

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