[Bug] PyArrowFileIO fails to propagate s3.ssl.ca-cert to pyarrow.fs.S3FileSystem tls_ca_file_path

### Apache Iceberg version

0.11.0 (latest release)

### Please describe the bug 🐞

When configuring PyIceberg with a REST catalog (such as Apache Polaris) connected to an S3-compatible store using internal or self-signed certificates, providing "s3.ssl.ca-cert" in the catalog configuration does not take effect for PyArrow file operations.

PyIceberg's PyArrowFileIO instantiates pyarrow.fs.S3FileSystem without forwarding the custom CA certificate path to PyArrow's tls_ca_file_path argument. As a result, operations that write or read Parquet files fail with curlCode: 60 (SSL verification failure in PyArrow's underlying AWS C++ SDK / libcurl engine).

### Willingness to contribute

- [ ] I can contribute a fix for this bug independently
- [x] I would be willing to contribute a fix for this bug with guidance from the Iceberg community
- [ ] I cannot contribute a fix for this bug at this time

Start at PyIceberg's PyArrowFileIO entry point where pyarrow.fs.S3FileSystem is instantiated, then trace how the catalog's "s3.ssl.ca-cert" setting is read. Verify the relevant PyArrow argument is covered for both Parquet reads and writes, and reproduce the issue with an internal or self-signed certificate to confirm the SSL verification failure is resolved.

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