Add GitHub ARM64 runners #6893

Job	Run time
Linux Arm	9m 4s
Linux x86-64	13m 50s
Docs	1m 13s
Mac Arm	9m 13s
Container Image	8m 11s
Mac Intel	9m 7s
Repolinter	38s
Stdlib	2m 22s
Windows	8m 58s
Mac Universal Binary	1s
Solana Integration test	1s
Polkadot Integration test	1s
Anchor Integration test	1s
Polkadot Integration test with subxt	1s
Visual Code Extension	1s
Coverage report	1s
	1h 2m 43s

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