feat: modify private calldata to use public keys

[sklppy88]

In this PR we are modifying private calldata to use public keys instead of only the public keys hash. This is in preparation for the new address changes in which we private calldata is needed to validate a contract address in the kernels in validate_contract_address (validate_contract_address uses information from the private calldata struct), and we need to constrain that a contract address can be recomputed using its entire set of public keys with AztecAddress::compute_from_private_function.

[sklppy88]

• feat: implement correct encryption and decryption #9272
• feat: introduce default public keys #9277
• feat: modify private calldata to use public keys #9276 👈
• master

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[github-actions]

Changes to circuit sizes

Generated at commit: 08159b8780f0504033150a9267446760a1d76b19, compared to commit: ed933eefc2aab4b616dca94fee9a02837aec7fb9

🧾 Summary (100% most significant diffs)

Program	ACIR opcodes (+/-)	%	Circuit size (+/-)	%
private_kernel_init	+57 ❌	+0.23%	+429 ❌	+1.33%
private_kernel_inner	+57 ❌	+0.13%	+429 ❌	+0.81%

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Full diff report 👇

Program	ACIR opcodes (+/-)	%	Circuit size (+/-)	%
private_kernel_init	25,060 (+57)	+0.23%	32,712 (+429)	+1.33%
private_kernel_inner	44,160 (+57)	+0.13%	53,306 (+429)	+0.81%