[Backport gluon-v2023.1.x] github: unpin official actions #824

Job	Run time
generate_target_matrix	3s
build_firmware (ath79-generic)	1h 16m 42s
build_firmware (ath79-mikrotik)	1h 11m 49s
build_firmware (ath79-nand)	1h 15m 4s
build_firmware (bcm27xx-bcm2708)	1h 4m 16s
build_firmware (bcm27xx-bcm2709)	1h 13m 27s
build_firmware (bcm27xx-bcm2710)	1h 17m 44s
build_firmware (bcm27xx-bcm2711)	1h 19m 49s
build_firmware (ipq40xx-generic)	1h 13m 8s
build_firmware (ipq40xx-mikrotik)	1h 11m 23s
build_firmware (ipq806x-generic)	1h 11m 38s
build_firmware (lantiq-xrx200)	1h 14m 48s
build_firmware (lantiq-xway)	1h 11m 28s
build_firmware (mediatek-mt7622)	1h 17m 53s
build_firmware (mpc85xx-p1010)	1h 11m 39s
build_firmware (mpc85xx-p1020)	1h 11m 10s
build_firmware (mvebu-cortexa9)	1h 12m 34s
build_firmware (ramips-mt7620)	1h 11m 23s
build_firmware (ramips-mt7621)	1h 15m 15s
build_firmware (ramips-mt76x8)	1h 11m 42s
build_firmware (realtek-rtl838x)	1h 0m 2s
build_firmware (rockchip-armv8)	1h 19m 13s
build_firmware (sunxi-cortexa7)	1h 6m 17s
build_firmware (x86-64)	1h 26m 50s
build_firmware (x86-generic)	1h 21m 25s
build_firmware (x86-geode)	1h 16m 38s
build_firmware (x86-legacy)	1h 18m 3s
create_release	0s
	1d 8h 1m 23s

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