soto: @ in key for certain operations causes SignatureDoesNotMatch error

Describe the bug When the @ sign is present in the key for certain operations the resulting request comes back with SignatureDoesNotMatch: The request signature we calculated does not match the signature provided. Check the Secret Access Key and signing method.

To Reproduce

let awsClient = AWSClient(
        credentialProvider: .static(accessKeyId: ..., secretAccessKey: ...),
        httpClientProvider: .createNew
    )

let myS3 = S3(client: awsClient, region: ..., partition: .aws, endpoint: ...)

let newObjectRequest = S3.PutObjectRequest(
            bucket: "bucket",
            key: "some/thing/abc@def"
)

do {
            let response = try await myS3.putObject(newObjectRequest)
} catch {
            print(error)
}

Expected behavior The request signature would be valid.

Setup (please complete the following information):

• OS: macOS & Linux
• Version of soto: v5.13.1
• Authentication mechanism : hard-coded credentials

Additional context Tried with another client and it worked as expected. Tried to identify where in the code this signature creation problem would reside so I could just PR you something but I could not figure it out.