build: update service model for bearer-token-service.json

1. get latest service models:
    - `client/token/bearer-token-service.json`
        - from: `<AWSVectorConsolasRuntimeServiceModel>/aws-sdk-external-2022-11-11/c2j/codewhispererruntime-2022-11-11.json`
    - `client/sigv4/service.json`
        - from: `<AWSVectorConsolasRuntimeServiceModel>/aws-sdk-external/c2j/codewhisperer-2024-10-25.json`
2. !!NOTE!! remove line `"signatureVersion": "bearer",` from `bearer-token-service.json`
3. restore the script that was mysteriously reverted in
   #161 without any
   documented alternative...
4. run `./node_modules/.bin/ts-node server/aws-lsp-codewhisperer/script/genclient.ts`

service model version: 1.0.20901.0

Author: justinmk3