[#13] Client: Use code analyzers

Signed-off-by: Pavel Gross <p.gross@yadro.com>

src/FrostFS.SDK.Tests/SmokeTestsBase.cs

@@ -8,6 +8,7 @@ namespace FrostFS.SDK.SmokeTests;
 public abstract class SmokeTestsBase
 {
     protected readonly string key = "KzPXA6669m2pf18XmUdoR8MnP1pi1PMmefiFujStVFnv7WR5SRmK";
+    
     protected readonly string url = "http://172.23.32.4:8080";
 
     protected ECDsa Key { get; }