core/services/functions: switch to sqlutil.DataStore

[jmank88]

https://smartcontract-it.atlassian.net/browse/BCF-2978

TODO:

• S4
• allowList
• subscriptions

[github-actions]

I see you updated files related to core. Please run pnpm changeset in the root directory to add a changeset as well as in the text include at least one of the following tags:

#nops : For any feature that is NOP facing and needs to be in the official Release Notes for the release.
#added : For any new functionality added.
#changed : For any change to the existing functionality. 
#removed : For any functionality/config that is removed.
#updated : For any functionality that is updated.
#deprecation_notice : For any upcoming deprecation functionality.
#breaking_change : For any functionality that requires manual action for the node to boot.
#db_update : For any feature that introduces updates to database schema.
#wip : For any change that is not ready yet and external communication about it should be held off till it is feature complete.
#bugfix - For bug fixes.
#internal - For changesets that need to be excluded from the final changelog.

[github-actions]

I see you added a changeset file but it does not contain a tag. Please edit the text include at least one of the following tags:

#nops : For any feature that is NOP facing and needs to be in the official Release Notes for the release.
#added : For any new functionality added.
#changed : For any change to the existing functionality. 
#removed : For any functionality/config that is removed.
#updated : For any functionality that is updated.
#deprecation_notice : For any upcoming deprecation functionality.
#breaking_change : For any functionality that requires manual action for the node to boot.
#db_update : For any feature that introduces updates to database schema.
#wip : For any change that is not ready yet and external communication about it should be held off till it is feature complete.
#bugfix - For bug fixes.
#internal - For changesets that need to be excluded from the final changelog.