docs(regen): fix javadoc return annotation

proto-google-cloud-dlp-v2/src/main/java/com/google/privacy/dlp/v2/CloudStorageOptions.java

@@ -1484,7 +1484,7 @@ public java.util.List<com.google.privacy.dlp.v2.FileType> getFileTypesList() {
    *
    * <code>repeated .google.privacy.dlp.v2.FileType file_types = 5;</code>
    *
-   * @param value The fileTypes to add.
+   * @return The count of fileTypes.
    */
   public int getFileTypesCount() {
     return fileTypes_.size();

proto-google-cloud-dlp-v2/src/main/java/com/google/privacy/dlp/v2/InfoTypeDescription.java

@@ -292,7 +292,7 @@ public java.util.List<com.google.privacy.dlp.v2.InfoTypeSupportedBy> getSupporte
    *
    * <code>repeated .google.privacy.dlp.v2.InfoTypeSupportedBy supported_by = 3;</code>
    *
-   * @param value The supportedBy to add.
+   * @return The count of supportedBy.
    */
   public int getSupportedByCount() {
     return supportedBy_.size();

proto-google-cloud-dlp-v2/src/main/java/com/google/privacy/dlp/v2/InspectConfig.java

@@ -2789,7 +2789,7 @@ public java.util.List<com.google.privacy.dlp.v2.ContentOption> getContentOptions
    *
    * <code>repeated .google.privacy.dlp.v2.ContentOption content_options = 8;</code>
    *
-   * @param value The contentOptions to add.
+   * @return The count of contentOptions.
    */
   public int getContentOptionsCount() {
     return contentOptions_.size();