Update dependency apple/swift-metrics to from: "2.7.0" (#782)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Bryce Buchanan <[email protected]>

Author: renovate[bot]

Package.swift

@@ -34,7 +34,7 @@ let package = Package(name: "opentelemetry-swift",
                         .package(url: "https://github.com/grpc/grpc-swift.git", exact: "1.24.2"),
                         .package(url: "https://github.com/apple/swift-protobuf.git", from: "1.20.2"),
                         .package(url: "https://github.com/apple/swift-log.git", from: "1.4.4"),
-                        .package(url: "https://github.com/apple/swift-metrics.git", from: "2.1.1"),
+                        .package(url: "https://github.com/apple/swift-metrics.git", from: "2.7.0"),
                         .package(url: "https://github.com/apple/swift-atomics.git", from: "1.2.0")
                       ],
                       targets: [