bump 'nim-serialization' to `005ee90cb6aa563cdd690910455ea05f916ead3f`

[etan-status]

• Work around Nim bug that erases type {.pragma.} when making alias

[github-actions[bot]]

Unit Test Results

         9 files  ±0    1 325 suites  ±0   34m 7s :stopwatch: + 2m 9s   4 986 tests ±0    4 638 :heavy_check_mark: ±0  348 :zzz: ±0  0 :x: ±0  20 814 runs  ±0  20 410 :heavy_check_mark: ±0  404 :zzz: ±0  0 :x: ±0 

Results for commit d14293de. ± Comparison against base commit 3d65bdcb.