Add explicit swift-service-context dependency (#891)

Author: stovak

Package.swift

@@ -45,6 +45,7 @@ let package = Package(
         .package(url: "https://github.com/apple/swift-algorithms.git", from: "1.0.0"),
         .package(url: "https://github.com/apple/swift-distributed-tracing.git", from: "1.3.0"),
         .package(url: "https://github.com/apple/swift-configuration.git", from: "1.0.0"),
+        .package(url: "https://github.com/apple/swift-service-context.git", from: "1.1.0"),
     ],
     targets: [
         .target(
@@ -74,6 +75,7 @@ let package = Package(
                 // Observability support
                 .product(name: "Logging", package: "swift-log"),
                 .product(name: "Tracing", package: "swift-distributed-tracing"),
+                .product(name: "ServiceContextModule", package: "swift-service-context"),
             ],
             swiftSettings: strictConcurrencySettings
         ),
@@ -97,6 +99,7 @@ let package = Package(
                 .product(name: "Logging", package: "swift-log"),
                 .product(name: "InMemoryLogging", package: "swift-log"),
                 .product(name: "Tracing", package: "swift-distributed-tracing"),
+                .product(name: "ServiceContextModule", package: "swift-service-context"),
                 .product(name: "InMemoryTracing", package: "swift-distributed-tracing"),
             ],
             resources: [