[SPARK-52247] Upgrade gRPC Swift Protobuf to 1.3.0

### What changes were proposed in this pull request?

This PR aims to upgrade `gRPC Swift Protobuf` to 1.3.

### Why are the changes needed?

To bring the latest features and bug fixes.
- https://github.com/grpc/grpc-swift-protobuf/releases/tag/1.3.0

### Does this PR introduce _any_ user-facing change?

No behavior change.

### How was this patch tested?

Pass the CIs.

### Was this patch authored or co-authored using generative AI tooling?

No.

Closes #164 from dongjoon-hyun/SPARK-52247.

Authored-by: Dongjoon Hyun <[email protected]>
Signed-off-by: Dongjoon Hyun <[email protected]>

Author: dongjoon-hyun

Package.swift

@@ -35,7 +35,7 @@ let package = Package(
   ],
   dependencies: [
     .package(url: "https://github.com/grpc/grpc-swift.git", exact: "2.2.1"),
-    .package(url: "https://github.com/grpc/grpc-swift-protobuf.git", exact: "1.2.0"),
+    .package(url: "https://github.com/grpc/grpc-swift-protobuf.git", exact: "1.3.0"),
     .package(url: "https://github.com/grpc/grpc-swift-nio-transport.git", exact: "1.1.0"),
     .package(url: "https://github.com/google/flatbuffers.git", branch: "v25.2.10"),
   ],

README.md

@@ -19,7 +19,7 @@ So far, this library project is tracking the upstream changes like the [Apache S
 - [Apache Spark 4.0.0 RC7 (May 2025)](https://dist.apache.org/repos/dist/dev/spark/v4.0.0-rc7-bin/)
 - [Swift 6.0 (2024) or 6.1 (2025)](https://swift.org)
 - [gRPC Swift 2.2 (May 2025)](https://github.com/grpc/grpc-swift/releases/tag/2.2.1)
-- [gRPC Swift Protobuf 1.2 (April 2025)](https://github.com/grpc/grpc-swift-protobuf/releases/tag/1.2.0)
+- [gRPC Swift Protobuf 1.3 (May 2025)](https://github.com/grpc/grpc-swift-protobuf/releases/tag/1.3.0)
 - [gRPC Swift NIO Transport 1.1 (May 2025)](https://github.com/grpc/grpc-swift-nio-transport/releases/tag/1.1.0)
 - [FlatBuffers v25.2.10 (February 2025)](https://github.com/google/flatbuffers/releases/tag/v25.2.10)
 - [Apache Arrow Swift](https://github.com/apache/arrow/tree/main/swift)