Add recipes for pgvector and pgvector-python

[mmcauliffe]

Checklist

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[conda-forge-linter]

Hi! This is the friendly automated conda-forge-linting service.

I wanted to let you know that I linted all conda-recipes in your PR (recipes/pgvector, recipes/pgvector-python) and found some lint.

Here's what I've got...

For recipes/pgvector-python:

• noarch: python recipes are required to have a lower bound on the python version. Typically this means putting python >=3.6 in both host and run but you should check upstream for the package's Python compatibility.

[conda-forge-linter]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipes/pgvector, recipes/pgvector-python) and found it was in an excellent condition.

[conda-forge-linter]

Hi! This is the friendly automated conda-forge-linting service.

I wanted to let you know that I linted all conda-recipes in your PR (recipes/pgvector, recipes/pgvector-python) and found some lint.

Here's what I've got...

For recipes/pgvector-python:

• noarch: python recipes are required to have a lower bound on the python version. Typically this means putting python >=3.6 in both host and run but you should check upstream for the package's Python compatibility.

[conda-forge-linter]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipes/pgvector, recipes/pgvector-python) and found it was in an excellent condition.

[mmcauliffe]

@conda-forge/staged-recipes @conda-forge/help-python this should be ready to review now!

[mmcauliffe]

@ocefpaf should be good now!