Fix javadoc for PropertiesUtils (#30992)

diff --git a/infra/util/src/main/java/org/apache/shardingsphere/infra/util/props/PropertiesUtils.java b/infra/util/src/main/java/org/apache/shardingsphere/infra/util/props/PropertiesUtils.java
index 03d5208..a51d26f 100644
--- a/infra/util/src/main/java/org/apache/shardingsphere/infra/util/props/PropertiesUtils.java
+++ b/infra/util/src/main/java/org/apache/shardingsphere/infra/util/props/PropertiesUtils.java
@@ -31,7 +31,7 @@
 public final class PropertiesUtils {
     
     /**
-     * Convert properties To string.
+     * Convert properties to string.
      *
      * @param props properties
      * @return properties string