Bump hashbrown from 0.15.0 to 0.15.1 (#7203)

Author: dependabot[bot]

Cargo.lock

@@ -62,7 +62,7 @@ gateway-messages = { git = "https://github.com/oxidecomputer/management-gateway-
 generic-array = { version = "0.14.7", default-features = false, features = ["more_lengths", "zeroize"] }
 getrandom = { version = "0.2.15", default-features = false, features = ["js", "rdrand", "std"] }
 group = { version = "0.13.0", default-features = false, features = ["alloc"] }
-hashbrown = { version = "0.15.0" }
+hashbrown = { version = "0.15.1" }
 hex = { version = "0.4.3", features = ["serde"] }
 hickory-proto = { version = "0.24.1", features = ["text-parsing"] }
 hmac = { version = "0.12.1", default-features = false, features = ["reset"] }
@@ -182,7 +182,7 @@ gateway-messages = { git = "https://github.com/oxidecomputer/management-gateway-
 generic-array = { version = "0.14.7", default-features = false, features = ["more_lengths", "zeroize"] }
 getrandom = { version = "0.2.15", default-features = false, features = ["js", "rdrand", "std"] }
 group = { version = "0.13.0", default-features = false, features = ["alloc"] }
-hashbrown = { version = "0.15.0" }
+hashbrown = { version = "0.15.1" }
 hex = { version = "0.4.3", features = ["serde"] }
 hickory-proto = { version = "0.24.1", features = ["text-parsing"] }
 hmac = { version = "0.12.1", default-features = false, features = ["reset"] }