Pin the `clap` version used to prevent future deprecation warnings (#1464)

...ws-smithy-http-server/examples/pokemon_service/Cargo.toml

tools/api-linter/Cargo.lock

tools/api-linter/Cargo.toml

tools/ci-cdk/canary-runner/Cargo.lock

tools/ci-cdk/canary-runner/Cargo.toml

tools/crate-hasher/Cargo.lock

tools/crate-hasher/Cargo.toml

tools/echo-server/Cargo.lock

tools/publisher/Cargo.lock

tools/publisher/Cargo.toml

tools/sdk-lints/Cargo.lock

tools/sdk-lints/Cargo.toml

tools/sdk-sync/Cargo.lock

tools/sdk-sync/Cargo.toml

tools/sdk-versioner/Cargo.lock

tools/sdk-versioner/Cargo.toml

tools/smithy-rs-tool-common/.gitignore

tools/smithy-rs-tool-common/Cargo.lock