Increase timeout of restart integration tests

Description

Related Issue

Motivation and Context

How Has This Been Tested?

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Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

integration-tests/code/testRestartOfKMSTest/testRestartOfKMS_test.go

@@ -191,7 +191,7 @@ func TestRestartOfKMS(t *testing.T) { //nolint:gocyclo
 				t.Errorf("Error restarting KMS: %s", err)
 				return
 			}
-			time.Sleep(10 * time.Second)
+			time.Sleep(20 * time.Second)
 		}
 	}
 }