docs(s3): clarify objectSizeGreaterThan attribute for lifecycle rules (…

…aws#27990)

Docs: [cloudformation s3 bucket rule](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-s3-bucket-rule.html).

Closes aws#27969.

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packages/aws-cdk-lib/aws-s3/lib/rule.ts

@@ -130,12 +130,15 @@ export interface LifecycleRule {
 
   /**
    * Specifies the maximum object size in bytes for this rule to apply to.
+   * Objects must be smaller than this value in bytes.
    *
    * @default - No rule
    */
   readonly objectSizeLessThan?: number;
 
-  /** Specifies the minimum object size in bytes for this rule to apply to.
+  /**
+   * Specifies the minimum object size in bytes for this rule to apply to.
+   * Objects must be larger than this value in bytes.
    *
    * @default - No rule
    */