Fix compile: await LogStore calls from non-MainActor GiteaClient

LogStore is @MainActor; GiteaClient.request is not main-actor-isolated, so the
5 LogStore.shared.log calls in the request handler need 'await' under Swift 5
strict concurrency. Without them the build fails at compile time.

GiteaPR/Networking/GiteaClient.swift

@@ -78,23 +78,23 @@ struct GiteaClient {
 
         let (data, response) = try await session.data(for: req)
         guard let http = response as? HTTPURLResponse else {
-            LogStore.shared.log(.error, "\(method) \(path) → invalid response")
+            await LogStore.shared.log(.error, "\(method) \(path) → invalid response")
             throw APIError.invalidResponse
         }
         switch http.statusCode {
         case 200...299:
-            LogStore.shared.log(.info, "\(method) \(path) → \(http.statusCode)")
+            await LogStore.shared.log(.info, "\(method) \(path) → \(http.statusCode)")
             return data
         case 401, 403:
-            LogStore.shared.log(.error, "\(method) \(path) → \(http.statusCode) unauthorized")
+            await LogStore.shared.log(.error, "\(method) \(path) → \(http.statusCode) unauthorized")
             throw APIError.unauthorized
         case 404:
-            LogStore.shared.log(.error, "\(method) \(path) → 404 not found")
+            await LogStore.shared.log(.error, "\(method) \(path) → 404 not found")
             throw APIError.notFound
         default:
             let message = (try? Self.decoder.decode([String: String].self,
                                                      from: data))?["message"]
-            LogStore.shared.log(.error, "\(method) \(path) → \(http.statusCode) \(message ?? "")")
+            await LogStore.shared.log(.error, "\(method) \(path) → \(http.statusCode) \(message ?? "")")
             throw APIError.httpStatus(http.statusCode, message)
         }
     }