PLT-9008: Fix warnings in doc generation

[hrajchert]

Calling npm run docs throws the following warnings

[warning] RoleTokenConfigurations, defined in ./packages/runtime/client/rest/src/contract/rolesConfigurations.ts, is referenced by contract.MintRolesTokens.__type.__index but not included in the documentation.
[warning] CreateContractSourcesResponse, defined in ./packages/runtime/client/rest/src/contract/endpoints/sources.ts, is referenced by index.RestClient.createContractSources.createContractSources but not included in the documentation.
[warning] GetContractSourceAdjacencyResponse, defined in ./packages/runtime/client/rest/src/contract/endpoints/sources.ts, is referenced by index.RestClient.getContractSourceAdjacency.getContractSourceAdjacency but not included in the documentation.
[warning] GetContractSourceClosureResponse, defined in ./packages/runtime/client/rest/src/contract/endpoints/sources.ts, is referenced by index.RestClient.getContractSourceClosure.getContractSourceClosure but not included in the documentation.
[warning] GetPayoutByIdResponse, defined in ./packages/runtime/client/rest/src/payout/endpoints/singleton.ts, is referenced by index.RestClient.getPayoutById.getPayoutById but not included in the documentation.
[warning] GetPayoutsResponse, defined in ./packages/runtime/client/rest/src/payout/endpoints/collection.ts, is referenced by index.RestClient.getPayouts.getPayouts but not included in the documentation.
[warning] GetWithdrawalByIdResponse, defined in ./packages/runtime/client/rest/src/withdrawal/endpoints/singleton.ts, is referenced by index.RestClient.getWithdrawalById.getWithdrawalById but not included in the documentation.
[warning] ApplyInputsToContractRequest, defined in ./packages/runtime/client/rest/src/contract/transaction/endpoints/collection.ts, is referenced by index.RestClient.applyInputsToContract.applyInputsToContract.request but not included in the documentation.
[warning] GetContractSourceAdjacencyRequest, defined in ./packages/runtime/client/rest/src/contract/endpoints/sources.ts, is referenced by index.RestClient.getContractSourceAdjacency.getContractSourceAdjacency.request but not included in the documentation.
[warning] GetContractBySourceIdRequest, defined in ./packages/runtime/client/rest/src/contract/endpoints/sources.ts, is referenced by index.RestClient.getContractSourceById.getContractSourceById.request but not included in the documentation.
[warning] GetContractSourceClosureRequest, defined in ./packages/runtime/client/rest/src/contract/endpoints/sources.ts, is referenced by index.RestClient.getContractSourceClosure.getContractSourceClosure.request but not included in the documentation.
[warning] GetNextStepsForContractRequest, defined in ./packages/runtime/client/rest/src/contract/next/endpoint.ts, is referenced by index.RestClient.getNextStepsForContract.getNextStepsForContract.request but not included in the documentation.
[warning] GetPayoutByIdRequest, defined in ./packages/runtime/client/rest/src/payout/endpoints/singleton.ts, is referenced by index.RestClient.getPayoutById.getPayoutById.request but not included in the documentation.
[warning] GetPayoutsRequest, defined in ./packages/runtime/client/rest/src/payout/endpoints/collection.ts, is referenced by index.RestClient.getPayouts.getPayouts.request but not included in the documentation.
[warning] GetWithdrawalsRequest, defined in ./packages/runtime/client/rest/src/withdrawal/endpoints/collection.ts, is referenced by index.RestClient.getWithdrawals.getWithdrawals.request but not included in the documentation.
[warning] WithdrawPayoutsRequest, defined in ./packages/runtime/client/rest/src/withdrawal/endpoints/collection.ts, is referenced by index.RestClient.withdrawPayouts.withdrawPayouts.request but not included in the documentation.
[warning] WithdrawalsRange, defined in ./packages/runtime/client/rest/src/withdrawal/endpoints/collection.ts, is referenced by index.RestClient.getWithdrawals.getWithdrawals.__type.nextRange but not included in the documentation.