Update example dependencies to point to the new beta tag (#2164)

Examples/echo/Package.swift

@@ -21,9 +21,9 @@ let package = Package(
   name: "echo",
   platforms: [.macOS("15.0")],
   dependencies: [
-    .package(url: "https://github.com/grpc/grpc-swift.git", branch: "main"),
-    .package(url: "https://github.com/grpc/grpc-swift-protobuf.git", branch: "main"),
-    .package(url: "https://github.com/grpc/grpc-swift-nio-transport.git", branch: "main"),
+    .package(url: "https://github.com/grpc/grpc-swift.git", exact: "2.0.0-beta.3"),
+    .package(url: "https://github.com/grpc/grpc-swift-protobuf.git", exact: "1.0.0-beta.3"),
+    .package(url: "https://github.com/grpc/grpc-swift-nio-transport.git", exact: "1.0.0-beta.3"),
     .package(url: "https://github.com/apple/swift-argument-parser.git", from: "1.5.0"),
   ],
   targets: [

Examples/error-details/Package.swift

@@ -21,8 +21,8 @@ let package = Package(
   name: "error-details",
   platforms: [.macOS(.v15)],
   dependencies: [
-    .package(url: "https://github.com/grpc/grpc-swift.git", branch: "main"),
-    .package(url: "https://github.com/grpc/grpc-swift-protobuf.git", branch: "main"),
+    .package(url: "https://github.com/grpc/grpc-swift.git", exact: "2.0.0-beta.3"),
+    .package(url: "https://github.com/grpc/grpc-swift-protobuf.git", exact: "1.0.0-beta.3"),
   ],
   targets: [
     .executableTarget(

Examples/hello-world/Package.swift

@@ -21,9 +21,9 @@ let package = Package(
   name: "hello-world",
   platforms: [.macOS("15.0")],
   dependencies: [
-    .package(url: "https://github.com/grpc/grpc-swift.git", branch: "main"),
-    .package(url: "https://github.com/grpc/grpc-swift-protobuf.git", branch: "main"),
-    .package(url: "https://github.com/grpc/grpc-swift-nio-transport.git", branch: "main"),
+    .package(url: "https://github.com/grpc/grpc-swift.git", exact: "2.0.0-beta.3"),
+    .package(url: "https://github.com/grpc/grpc-swift-protobuf.git", exact: "1.0.0-beta.3"),
+    .package(url: "https://github.com/grpc/grpc-swift-nio-transport.git", exact: "1.0.0-beta.3"),
     .package(url: "https://github.com/apple/swift-argument-parser.git", from: "1.5.0"),
   ],
   targets: [

Examples/reflection-server/Package.swift

@@ -21,10 +21,10 @@ let package = Package(
   name: "reflection-server",
   platforms: [.macOS(.v15)],
   dependencies: [
-    .package(url: "https://github.com/grpc/grpc-swift.git", branch: "main"),
-    .package(url: "https://github.com/grpc/grpc-swift-protobuf.git", branch: "main"),
-    .package(url: "https://github.com/grpc/grpc-swift-nio-transport.git", branch: "main"),
-    .package(url: "https://github.com/grpc/grpc-swift-extras.git", branch: "main"),
+    .package(url: "https://github.com/grpc/grpc-swift.git", exact: "2.0.0-beta.3"),
+    .package(url: "https://github.com/grpc/grpc-swift-protobuf.git", exact: "1.0.0-beta.3"),
+    .package(url: "https://github.com/grpc/grpc-swift-nio-transport.git", exact: "1.0.0-beta.3"),
+    .package(url: "https://github.com/grpc/grpc-swift-extras.git", exact: "1.0.0-beta.3"),
     .package(url: "https://github.com/apple/swift-argument-parser.git", from: "1.5.0"),
   ],
   targets: [

Examples/route-guide/Package.swift

@@ -21,9 +21,9 @@ let package = Package(
   name: "route-guide",
   platforms: [.macOS("15.0")],
   dependencies: [
-    .package(url: "https://github.com/grpc/grpc-swift.git", branch: "main"),
-    .package(url: "https://github.com/grpc/grpc-swift-protobuf.git", branch: "main"),
-    .package(url: "https://github.com/grpc/grpc-swift-nio-transport.git", branch: "main"),
+    .package(url: "https://github.com/grpc/grpc-swift.git", exact: "2.0.0-beta.3"),
+    .package(url: "https://github.com/grpc/grpc-swift-protobuf.git", exact: "1.0.0-beta.3"),
+    .package(url: "https://github.com/grpc/grpc-swift-nio-transport.git", exact: "1.0.0-beta.3"),
     .package(url: "https://github.com/apple/swift-argument-parser.git", from: "1.5.0"),
   ],
   targets: [