breaking: update tokio-tungstenite to 0.25 and update examples #5115

Job	Run time
check-docs	18s
cargo-public-api-crates (axum)	28s
check	1m 27s
cargo-hack	4m 4s
cargo-public-api-crates (axum-core)	20s
cargo-public-api-crates (axum-extra)	28s
cargo-deny check (advisories)	22s
dependencies-are-sorted	19s
cargo-deny check (bans licenses sources)	26s
cargo-public-api-crates (axum-macros)	16s
Spell Check with Typos	4s
test-docs	1m 20s
armv5te-unknown-linux-musleabi	35s
test-msrv	2m 30s
test-nightly	1m 23s
test-versions (stable)	3m 9s
wasm32-unknown-unknown	16s
test-versions (beta)	2m 58s
	20m 43s

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