fix: Remove minor Sonar findings

Author: HofmeisterAn

src/Testcontainers.Couchbase/CouchbaseContainer.cs

@@ -15,7 +15,7 @@ public CouchbaseContainer(CouchbaseConfiguration configuration)
     {
         _configuration = configuration;
         Starting += (_, _) => Logger.LogInformation("Couchbase container is starting, performing configuration.");
-        Started += (_, _) => Logger.LogInformation($"Couchbase container is ready! UI available at {new UriBuilder(Uri.UriSchemeHttp, Hostname, GetMappedPublicPort(CouchbaseBuilder.MgmtPort))}");
+        Started += (_, _) => Logger.LogInformation("Couchbase container is ready! UI available at {Url}.", new UriBuilder(Uri.UriSchemeHttp, Hostname, GetMappedPublicPort(CouchbaseBuilder.MgmtPort)));
     }
 
     /// <summary>

src/Testcontainers/Clients/DockerApiClient.cs

@@ -109,7 +109,7 @@ await RuntimeInitialized.WaitAsync(ct)
         runtimeInfo.Append("  Total Memory: ");
         runtimeInfo.AppendFormat(CultureInfo.InvariantCulture, "{0:F} {1}", dockerInfo.MemTotal / Math.Pow(1024, byteUnits.Length), byteUnits[byteUnits.Length - 1]);
 
-        Logger.LogInformation(runtimeInfo.ToString());
+        Logger.LogInformation("{RuntimeInfo}", runtimeInfo);
       }
       catch(Exception e)
       {

tests/Testcontainers.Platform.Linux.Tests/LoggerTest.cs

@@ -30,7 +30,7 @@ public Task DisposeAsync()
     [InlineData(2)]
     public void LogContainerRuntimeInformationOnce(int _)
     {
-        Assert.Contains("Connected to Docker", _fakeLogger.Collector.GetSnapshot().First().Message);
+        Assert.Contains("Connected to Docker", _fakeLogger.Collector.GetSnapshot()[0].Message);
     }
 
     [UsedImplicitly]