Sample generation issues from refreshing MPG samples

[kazrael2119]

spec pr: Azure/azure-rest-api-specs#31543

1: can't publish samples as folder is dirty(this should be the publish issue not sample gen)

2: genereate unexpected client level parameter : subsriptionId if the client doesn't need it. https://dev.azure.com/azure-sdk/internal/_build/results?buildId=4332275&view=logs&j=47092895-c7c8-567a-c7a6-8c88f3ec178e&t=d293a8e8-c6af-5091-cdf7-4c66482dd6f2&l=793

3: missing property in operation level: https://dev.azure.com/azure-sdk/internal/_build/results?buildId=4332275&view=logs&j=47092895-c7c8-567a-c7a6-8c88f3ec178e&t=d293a8e8-c6af-5091-cdf7-4c66482dd6f2&l=796
sample from automation pr: https://github.com/azure-sdk/azure-sdk-for-js/pull/12847/files#diff-f48a5c560070894caa90594d30e7f69278578d503b21ecd790efdfac65973134L27-R17

4: error message: Type 'string' is not assignable to type 'Uint8Array'
tsp file:
link: https://github.com/kazrael2119/azure-rest-api-specs/blob/support-sample-gen-for-ts/specification/contosowidgetmanager/Contoso.Management/employee.tsp#L25-L28

  /** Profile of employee */
  @encode("base64url")
  profile?: bytes;

generated code:https://github.com/azure-sdk/azure-sdk-for-js/blob/e20dffad1c0889fffda4b9b86c7b7fba78fec584/sdk/contoso/arm-contoso/src/models/models.ts#L45-L46

 /** Profile of employee */
  profile?: Uint8Array;

generated sample：https://github.com/azure-sdk/azure-sdk-for-js/blob/e20dffad1c0889fffda4b9b86c7b7fba78fec584/sdk/contoso/arm-contoso/samples-dev/employeesCreateOrUpdateSample.ts#L24

profile: "ms",

5: missing required property: https://dev.azure.com/azure-sdk/internal/_build/results?buildId=4345745&view=logs&j=47092895-c7c8-567a-c7a6-8c88f3ec178e&t=d293a8e8-c6af-5091-cdf7-4c66482dd6f2&l=20682
this property exists in spec example, but does not be generated in sdk sample

[kazrael2119]

(durabletask) https://dev.azure.com/azure-sdk/internal/_build/results?buildId=4345745&view=logs&j=47092895-c7c8-567a-c7a6-8c88f3ec178e&t=d293a8e8-c6af-5091-cdf7-4c66482dd6f2&l=13869
(hybridconnectivity) https://dev.azure.com/azure-sdk/internal/_build/results?buildId=4345745&view=logs&j=47092895-c7c8-567a-c7a6-8c88f3ec178e&t=d293a8e8-c6af-5091-cdf7-4c66482dd6f2&l=18664
(neonpostgres) https://dev.azure.com/azure-sdk/internal/_build/results?buildId=4345745&view=logs&j=47092895-c7c8-567a-c7a6-8c88f3ec178e&t=d293a8e8-c6af-5091-cdf7-4c66482dd6f2&l=23273

these should be the spec example issue