[CI] Reflect python-cwt update

[kentakayama]

This PR doesn't affect to the RFC document, just updates the validation scripts.

Since python-cwt 2.8.0, non-AEAD ciphers are disabled by default.
This PR reflects the update, adding enable_non_aead=True to decode method for AES-CTR and AES-CBC examples.

examples/validate_esdh_non_aead_suit_encryption_info.py has been removed and inetgrated into examples/validate_esdh_encrypted_payload.py .

[kentakayama]

I've updated the SUIT Manifest processor using libcsuit to override payload fetching.
The validation tool is updated in this PR taking uri&hex pair as command line arguments.

./libcsuit/bin/suit_manifest_process ./suit-manifest-aes-kw.suit \
  -u "https://example.com/encrypted-firmware" \
  -b "758C4B7BBAE2C4C1D462423E0F0DC3164FFA7B85BB94D4BD6D7ED26AB32FEB063385D4D3465927EC82CB5E198A59"