Fix GetOutput status code error handling -_-"

[github-actions[bot]]

Test Results

 14 files  ±0   14 suites  ±0   10s :stopwatch: -2s 681 tests ±0  674 :white_check_mark: ±0  7 :zzz: ±0  0 :x: ±0  682 runs  ±0  675 :white_check_mark: ±0  7 :zzz: ±0  0 :x: ±0 

Results for commit 76c8207e. ± Comparison against base commit 52227b97.

This pull request removes 6 and adds 6 tests. Note that renamed tests count towards both.

``` dev.restate.sdk.TestSerdesTest ‑ Byte: 54 dev.restate.sdk.TestSerdesTest ‑ Double: 0.09580144706941629 dev.restate.sdk.TestSerdesTest ‑ Float: 0.18112737 dev.restate.sdk.TestSerdesTest ‑ Integer: -2044108370 dev.restate.sdk.TestSerdesTest ‑ Long: 5988876779859326321 dev.restate.sdk.TestSerdesTest ‑ Short: -1624 ``` ``` dev.restate.sdk.TestSerdesTest ‑ Byte: 39 dev.restate.sdk.TestSerdesTest ‑ Double: 0.8350147101577863 dev.restate.sdk.TestSerdesTest ‑ Float: 0.053106666 dev.restate.sdk.TestSerdesTest ‑ Integer: 1036896781 dev.restate.sdk.TestSerdesTest ‑ Long: 2663443275333613393 dev.restate.sdk.TestSerdesTest ‑ Short: 20033 ```

:recycle: This comment has been updated with latest results.