Fix changelog entry (#1781)

# references = ["smithy-rs#920"]

# meta = { "breaking" = false, "tada" = false, "bug" = false, "target" = "client | server | all"}

# author = "rcoh"

[[rust-runtime]]

[[smithy-rs]]

message = "Pokémon Service example code now runs clippy during build."

references = ["smithy-rs#1727"]

meta = { "breaking" = false, "tada" = false, "bug" = false, "target" = "server" }