Set aws-smithy-mocks-experimental to 0.1 (#3372)

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Co-authored-by: Russell Cohen <rcoh@amazon.com>

rust-runtime/aws-smithy-mocks-experimental/Cargo.toml

 [package]
 name = "aws-smithy-mocks-experimental"
-version = "0.0.0-smithy-rs-head"
+version = "0.1.0"
 authors = ["AWS Rust SDK Team <aws-sdk-rust@amazon.com>"]
 description = "Experimental testing utilities for smithy-rs generated clients"
 edition = "2021"
 license = "Apache-2.0"
 repository = "https://github.com/smithy-lang/smithy-rs"
-publish = false
 
 [dependencies]
 aws-smithy-types = "1"