breaking: update tokio-tungstenite to 0.26 and update examples #5116

Job	Run time
check-docs	23s
check	1m 8s
cargo-public-api-crates (axum)	35s
cargo-hack	4m 35s
cargo-public-api-crates (axum-core)	23s
cargo-deny check (advisories)	27s
dependencies-are-sorted	29s
cargo-deny check (bans licenses sources)	26s
Spell Check with Typos	4s
cargo-public-api-crates (axum-extra)	36s
cargo-public-api-crates (axum-macros)	25s
armv5te-unknown-linux-musleabi	0s
test-msrv	0s
test-docs	0s
test-nightly	0s
test-versions	0s
wasm32-unknown-unknown	0s
	9m 31s

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