python-botocore: update to 1.42.86

python-botocore: update to 1.42.86

Update package to 1.42.86.

Key changes since 1.31.7:

1.32.1: botocore wheel now ships compressed service models to reduce
disk footprint.

1.33.0: Version aligned; boto3/botocore share the same version number.

1.36.0 (S3 checksum overhaul): CRC32 default for uploads; CRC64NVME
support via awscrt; configurable via request_checksum_calculation and
response_checksum_validation settings.

1.37.0 (Account-based endpoints): DynamoDB support for account-based
endpoint routing; smithy-rpc-v2-cbor protocol support (1.37.2).

1.38.0: Python 3.8 dropped.

1.40.0: STS regional endpoints now default; login credential provider
added (1.41.0).

1.42.29: TCP Keep-Alive config via BOTOCORE_TCP_KEEPALIVE env var.
1.42.43: HTTP blocksize increased 16KB -> 128KB with urllib3 v2.
1.42.53: SHA512/XXHASH checksum algorithms added.
1.42.85: SigV4a auth_scheme_preference bugfix.

Signed-off-by: Alexandru Ardelean <redacted>