test: refresh BIP-352 test vectors to v1.1.1

[macgyver13]

Description

Refresh BIP-352 test vectors to match version 1.1.1

• Add tests 26 & 27 to send.rs and receive.rs.
• Modify serialization to parse the updated sending.given.recipients map and maintain receiving.expected.addresses string format.

Notes to the reviewers

cargo t --test functional_tests bip352_vectors

All tests pass - 3 are ignored for this PR

test bip352_vectors::send::input_keys_intermediate_sum_is_zero_but_final_sum_is_non_zero ... ignored, currently fails due to intermediate sum being zero
test bip352_vectors::send::maximum_per_group_recipient_limit_k_max_is_exceeded ... ignored, limit k-max not implemented
test bip352_vectors::receive::maximum_per_group_recipient_limit_k_max_is_exceeded ... ignored, limit k-max not implemented

Resolving ignored tests will be handled in future PRs.

Checklists

All Submissions:

• I've signed all my commits
• I followed the conventional commit guidelines
• I ran just p (fmt, clippy and test) before committing

[nymius]

ACK bcac039