update bips submodule and build

Author: github-actions[bot]

bips

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+# BIP-375 Validation Reference
+
+A reference validation implementation for BIP-375: Sending Silent Payments with PSBTs.
+
+## Core Files
+- **`validator/bip352_crypto.py`** - Silent payment output script derivation
+- **`validator/inputs.py`** - PSBT input utility functions
+- **`validator/psbt_bip375.py`** - BIP-375 specific PSBT/PSBTMap extensions
+- **`validator/validate_psbt.py`** - Main BIP-375 validation functions
+- **`test_runner.py`** - Test infrastructure (executable)
+
+## Dependencies
+- **`deps/bitcoin_test/psbt.py`** - Bitcoin test framework PSBT module - [PR #21283](https://github.com/bitcoin/bitcoin/pull/21283)
+- **`deps/bitcoin_test/messages.py`** - Bitcoin test framework primitives and message structures
+- **`deps/dleq.py`** - Reference DLEQ implementation from BIP-374
+- **`deps/secp256k1lab/`** - vendored copy of [secp256k1lab](https://github.com/secp256k1lab/secp256k1lab/commit/44dc4bd893b8f03e621585e3bf255253e0e0fbfb) library at version 1.0.0
+
+## Testing
+
+### Run Tests
+
+```bash
+python test_runner.py                    # Run all tests
+python test_runner.py -v                 # Verbose mode with detailed validation status
+python test_runner.py -vv                # More verbose with validation check failure reason
+
+python test_runner.py -f vectors.json    # Use custom test vector file
+```
+
+### Generating Test Vectors
+
+Test vectors were generated using [test_generator.py](https://github.com/macgyver13/bip375-test-generator/)