Merging TestFlows requirements for AES encryption functions.

[vzakaznikov]

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Changelog category (leave one):

• Build/Testing/Packaging Improvement

Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md):
Merging requirements for AES encryption functions.
Updating aes_encryption tests to use new requirements.
Updating TestFlows version to 1.6.72.

Detailed description / Documentation draft:
Merging requirements for AES encryption functions.
Updating aes_encryption tests to use new requirements.
Updating TestFlows version to 1.6.72.

[alexey-milovidov]

Could you please resolve conflicts?

[vzakaznikov]

Could you please resolve conflicts?

Done, but still need to check tests and remove CFB1 and CFB8 modes that are no longer supported.

[vzakaznikov]

@alexey-milovidov, for GCM mode the IV is expected to be 12 bytes based on the error message but there is no error when it less than 12. Is this the expected behavior?

user-host :) SELECT encrypt('aes-192-gcm', 'hello', '123456789012345612345678')
SELECT encrypt('aes-192-gcm', 'hello', '123456789012345612345678')
Query id: d8a7d263-57f1-43b4-a297-1cdff19ae21f

Received exception from server (version 20.13.1):
Code: 36. DB::Exception: Received from localhost:9000. DB::Exception: Invalid IV size 0 != expected size 12: While processing encrypt('aes-192-gcm', 'hello', '123456789012345612345678'). 

0 rows in set. Elapsed: 0.003 sec. 

user-host :) SELECT encrypt('aes-192-gcm', 'hello', '123456789012345612345678', '1')
SELECT encrypt('aes-192-gcm', 'hello', '123456789012345612345678', '1')
Query id: 0a996378-9839-4b21-8b27-0da3a1d461e0

┌─encrypt('aes-192-gcm', 'hello', '123456789012345612345678', '1')─┐
│ ߈̺<v�R�oމ�c7JS�t
└──────────────────────────────────────────────────────────────────┘

1 rows in set. Elapsed: 0.003 sec.

user-host :)

[vzakaznikov]

@alexey-milovidov, I've updated requirements and tests. When TestFlows check is green this PR is ready for merge.