chore(gradle): bump software.amazon.s3tables:s3-tables-catalog-for-iceberg from 0.1.6 to 0.1.8 (#7104)

Bumps [software.amazon.s3tables:s3-tables-catalog-for-iceberg](https://github.com/awslabs/s3-tables-catalog) from 0.1.6 to 0.1.8.
- [Release notes](https://github.com/awslabs/s3-tables-catalog/releases)
- [Commits](awslabs/[email protected])

---
updated-dependencies:
- dependency-name: software.amazon.s3tables:s3-tables-catalog-for-iceberg
  dependency-version: 0.1.8
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -5,7 +5,7 @@ arrow = "18.3.0"
 autoservice = "1.1.1"
 avro = "1.12.1"
 awssdk = "2.29.52"
-aws-s3-tables-catalog-for-iceberg = "0.1.6"
+aws-s3-tables-catalog-for-iceberg = "0.1.8"
 # See dependency matrix for particular gRPC versions at https://github.com/grpc/grpc-java/blob/master/SECURITY.md#netty
 boringssl = "2.0.61.Final"