Parent segment is not defined in ads catalog for purchase intent ads

[btlechowski]

Follow up to #8047

purchase intent ads have parentCode defined, but parent is not defined

Steps to Reproduce

1. Clean profile
2. Connect to US
3. Open https://ads-serve.bravesoftware.com/v2/catalog
4. Search for parent Code: rRWCQL4-i

Actual result:

segment with code rRWCQL4-i does not exist
Only segment with "parentCode": "rRWCQL4-i" exists

"segments": [{
		"code": "RuHxHavV2",
		"name": "automotive purchase intent by category-mid luxury car",
		"parentCode": "5W5gsHA15"
	}, {
		"code": "mqiPIYccl",
		"name": "automotive purchase intent by make-audi",
		"parentCode": "rRWCQL4-i"
	}
],

Expected result:

segment with code rRWCQL4-i exists

Working Example from production catalog(us):

"segments": [{
		"code": "z7floCfZA_P",
		"name": "Personal Finance-Financial Advisors",
		"parentCode": "F6B46w9iJd"
	}, {
		"code": "XoEKKv5PqWWf",
		"name": "Personal Finance-banking",
		"parentCode": "F6B46w9iJd"
	}, {
		"code": "_PEMAp6RE_k9",
		"name": "Personal Finance-Learn Stocks",
		"parentCode": "F6B46w9iJd"
	}, {
		"code": "J9YDYm6oQIMb",
		"name": "Personal Finance-investing",
		"parentCode": "F6B46w9iJd"
	}, {
		"code": "F6B46w9iJd",
		"name": "Personal Finance"
	}, {
		"code": "BwhnRpkM8sF",
		"name": "Personal Finance-Personal Loans",
		"parentCode": "F6B46w9iJd"
	}, {
		"code": "5vPJWdHAEMlr",
		"name": "Personal Finance-stocks",
		"parentCode": "F6B46w9iJd"
	}]

Parent is defined in:

		"code": "F6B46w9iJd",
		"name": "Personal Finance"

The rest of the segments point to it through parentCode

Reproduces how often:

100% repro rate

Brave version (brave://version info)

Brave	1.7.78 Chromium: 80.0.3987.149 (Official Build) dev (64-bit)
Revision	5f4eb224680e5d7dca88504586e9fd951840cac6-refs/branch-heads/3987_137@{#16}
OS	Ubuntu 18.04 LTS

cc @brave/legacy_qa @rebron @tmancey @moritzhaller @jsecretan

[tmancey]

Discussed with @moritzhaller and agreed to close issue as a duplicate of #8486