Reduce elog overhead on fastpath

[Ngalstyan4]

Should be merged now.

• [ ] ~Add a CmakeLists option for defining LANTERNDB_DEBUG_LOGS~
• [ ] ~Build LanternDB with LANTERNDB_DEBUG_LOGS in ci/cd for tests~
• [ ] ~Separate out tests that need LANTERNDB_DEBUG_LOGS into one file (This will make sure that if users run tests locally, without enabling this flag on their release branch, tests only in one file will fail)~

[codecov[bot]]

Codecov Report

Merging #120 (678f229) into main (9df32a0) will increase coverage by 0.18%. The diff coverage is n/a.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #120 +/- ## ========================================== + Coverage 84.01% 84.20% +0.18% ========================================== Files 17 17 Lines 1170 1165 -5 Branches 250 245 -5 ========================================== - Hits 983 981 -2 Misses 85 85 + Partials 102 99 -3 ``` | [Files Changed](https://app.codecov.io/gh/lanterndata/lanterndb/pull/120?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=lanterndata) | Coverage Δ | | |---|---|---| | [src/hnsw/scan.c](https://app.codecov.io/gh/lanterndata/lanterndb/pull/120?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=lanterndata#diff-c3JjL2huc3cvc2Nhbi5j) | `83.50% <ø> (+2.13%)` | :arrow_up: | | [src/hnsw/utils.h](https://app.codecov.io/gh/lanterndata/lanterndb/pull/120?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=lanterndata#diff-c3JjL2huc3cvdXRpbHMuaA==) | `40.00% <ø> (ø)` | |

[Ngalstyan4]

Actually, seems kind of annoying to have yet another build option for this.. Opened an issue (#133) to deal with this in a cleaner way