refactor: make return values of db and batch Set, SetWithTTL, and Delete #97

	# This workflow will build a golang project
	# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-go

	name: Go

	on:
	push:
	branches: [ "main" ]
	pull_request:
	branches: [ "main" ]

	jobs:
	ubuntu-test:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3

	- name: Set up Go
	uses: actions/setup-go@v4
	with:
	go-version: '1.20'

	- name: Build
	run: go build -v

	- name: Run Test
	run: make test

	- name: Run Test with race checks
	run: make test-race

	- name: Run Benchmark Test
	run: make bench

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