ci: remove usage of self-hosted runners #4947

Job	Run time
Build	3m 27s
Test example js-libp2p-example-connection-encryption	3m 13s
Test example js-libp2p-example-browser-pubsub	2m 34s
Test example js-libp2p-example-chat	2m 49s
Test example js-libp2p-example-circuit-relay	3m 16s
Test example js-libp2p-example-delegated-routing	3m 12s
Test example js-libp2p-example-discovery-mechanisms	2m 8s
Test example js-libp2p-example-peer-and-content-routing	1m 16s
Test example js-libp2p-example-webrtc-private-to-public	3m 34s
Test example js-libp2p-example-pubsub	2m 23s
Test example js-libp2p-example-custom-protocols	4m 4s
Test example js-libp2p-example-transports	3m 9s
Test example js-libp2p-example-pnet	2m 52s
Test example js-libp2p-example-protocol-and-stream-muxing	1m 29s
Test example js-libp2p-example-webrtc-private-to-private	2m 36s
	42m 2s

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