chore(deps): update dependency @sap/hana-client to v2.21.31 (#793)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| @​sap/hana-client | [`2.21.28` ->
`2.21.31`](https://renovatebot.com/diffs/npm/@sap%2fhana-client/2.21.28/2.21.31)
|
[![age](https://developer.mend.io/api/mc/badges/age/npm/@sap%2fhana-client/2.21.31?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/@sap%2fhana-client/2.21.31?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/@sap%2fhana-client/2.21.28/2.21.31?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/@sap%2fhana-client/2.21.28/2.21.31?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

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