Remove pgvector from Docker

[codecov[bot]]

Codecov Report

Merging #184 (4231c4e) into main (e87563a) will not change coverage. The diff coverage is n/a.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #184 +/- ## ======================================= Coverage 83.06% 83.06% ======================================= Files 17 17 Lines 1175 1175 Branches 251 251 ======================================= Hits 976 976 Misses 85 85 Partials 114 114 ```

[github-actions[bot]]

Benchmarks

metric	old	new	pct change
recall (after create)	0.740	0.740	-
recall (after insert)	0.774	0.778	+0.52%
select bulk tps	153.929	205.032	+33.20%
select bulk latency (ms)	49.864	37.856	-24.08%
select bulk latency (stddev ms)	10.449	9.568	-8.43%
create latency (ms)	1729.450	1656.448	-4.22%
insert bulk tps	10.628	13.669	+28.62%
insert bulk latency (ms)	94.074	73.135	-22.26%
insert bulk latency (stddev ms)	5.241	3.218	-38.60%
disk usage (bytes)	6348800.000	6348800.000	-

[Ngalstyan4]

@dqii, is anything missing from this? (it is marked as draft)