fix const names in codegen

[Velfi]

This renames stuff in codegen based on IntelliJ lints.

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[github-actions]

A new generated diff is ready to view.

• No codegen difference in the AWS SDK
• No codegen difference in the Client Test
• No codegen difference in the Server Test
• No codegen difference in the Server Test Python
• No codegen difference in the Server Test Typescript

A new doc preview is ready to view.

[landonxjames]

I wonder if we could use an automated linter/formatter that would keep these things from piling up? A quick search didn't turn up anything as authoritative as rustfmt, but there do seem to be some options out there. Beyond the scope of this PR, but might be a nice to have commit hook or something.

[drganjoo]

This looks nice - thank you!

Should we also change PropertyKey to PROPERTY_KEY on line #45 of codegen-core/src/main/kotlin/software/amazon/smithy/rust/codegen/core/rustlang/CargoDependency.kt?

        private const val PropertyKey = "rustdep"

[Velfi]

I wonder if we could use an automated linter/formatter that would keep these things from piling up?

Probably? These lints come from IntelliJ. We already have ktlint set up, maybe we just need to bring the configs of IntelliJ and ktlint in sync.

[github-actions]

A new generated diff is ready to view.

• No codegen difference in the AWS SDK
• No codegen difference in the Client Test
• No codegen difference in the Server Test
• No codegen difference in the Server Test Python
• No codegen difference in the Server Test Typescript

A new doc preview is ready to view.