fix: allow overriding mss mode #3911

Job	Run time
Build	2m 58s
Test example js-libp2p-example-browser-pubsub	1m 40s
Test example js-libp2p-example-chat	59s
Test example js-libp2p-example-circuit-relay	1m 9s
Test example js-libp2p-example-connection-encryption	1m 10s
Test example js-libp2p-example-custom-protocols	59s
Test example js-libp2p-example-delegated-routing	2m 13s
Test example js-libp2p-example-discovery-mechanisms	1m 6s
Test example js-libp2p-example-peer-and-content-routing	1m 33s
Test example js-libp2p-example-pnet	1m 11s
Test example js-libp2p-example-protocol-and-stream-muxing	1m 19s
Test example js-libp2p-example-pubsub	1m 29s
Test example js-libp2p-example-transports	1m 12s
Test example js-libp2p-example-webrtc-private-to-private	2m 6s
	21m 4s

Provide feedback