Bump tokio-tungstenite from v0.25 to v0.26 (#4364)

Author: dependabot[bot]

crates/example-tests/Cargo.toml

@@ -21,6 +21,6 @@ mozrunner = "0.15"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 tokio = { version = "1.29.1", features = ["macros", "net", "time"] }
-tokio-tungstenite = "0.25"
+tokio-tungstenite = "0.26"
 tower = { version = "0.5", features = ["make", "util"] }
 tower-http = { version = "0.6", features = ["fs", "util", "set-header"] }