fix(lambda): architecture doc

[jay-babu]

      aws:lambda:Function transformity-auditor  error: aws:lambda/function:Function resource 'transformity-auditor' has a problem: expected architectures to be one of ["x86_64" "arm64"], got x8664. Examine values at 'transformity-auditor.architectures[0]'.
      pulumi:pulumi:Stack transformity-auditor-gamma  
      aws:lambda:Function transformity-auditor **failed** 1 error
  Diagnostics:
    aws:lambda:Function (transformity-auditor):
      error: aws:lambda/function:Function resource 'transformity-auditor' has a problem: expected architectures to be one of ["x86_64" "arm64"], got x8664. Examine values at 'transformity-auditor.architectures[0]'.
  Resources:
      4 unchanged
  Duration: 10s
  /home/runner/work/_actions/pulumi/actions/v6/webpack:/pulumi-github-action/node_modules/@pulumi/pulumi/automation/errors.js:81
                      : new CommandError(result);
  ^
  CommandError: code: -2
   stdout: 
   stderr: Command failed with exit code 255: pulumi up --yes --skip-preview --exec-agent pulumi/actions@v5 --color auto --exec-kind auto.local --stack gamma --non-interactive

[github-actions]

PR is now waiting for a maintainer to run the acceptance tests.
Note for the maintainer: To run the acceptance tests, please comment /run-acceptance-tests on the PR

[github-actions]

Hello and thank you for your pull request! ❤️ ✨
It looks like you're directly modifying files in the language SDKs, many of which are autogenerated.
Be sure any files you're editing do not begin with a code generation warning.
For generated files, you will need to make changes in resources.go instead, and generate the code.