fix: deprecate files in v1beta1 that will be removed in next release (#355)

Author: Neenu1995

proto-google-cloud-securitycenter-v1beta1/src/main/java/com/google/cloud/securitycenter/v1beta1/AssetSecurityMarksName.java

@@ -23,8 +23,13 @@
 import java.util.List;
 import java.util.Map;
 
-/** AUTO-GENERATED DOCUMENTATION AND CLASS */
+/**
+ * AUTO-GENERATED DOCUMENTATION AND CLASS
+ *
+ * @deprecated This resource name class will be removed in the next major version.
+ */
 @javax.annotation.Generated("by GAPIC protoc plugin")
+@Deprecated
 public class AssetSecurityMarksName extends SecuritymarksName {
 
   private static final PathTemplate PATH_TEMPLATE =

proto-google-cloud-securitycenter-v1beta1/src/main/java/com/google/cloud/securitycenter/v1beta1/FindingSecurityMarksName.java

@@ -23,8 +23,13 @@
 import java.util.List;
 import java.util.Map;
 
-/** AUTO-GENERATED DOCUMENTATION AND CLASS */
+/**
+ * AUTO-GENERATED DOCUMENTATION AND CLASS
+ *
+ * @deprecated This resource name class will be removed in the next major version.
+ */
 @javax.annotation.Generated("by GAPIC protoc plugin")
+@Deprecated
 public class FindingSecurityMarksName extends SecuritymarksName {
 
   private static final PathTemplate PATH_TEMPLATE =

proto-google-cloud-securitycenter-v1beta1/src/main/java/com/google/cloud/securitycenter/v1beta1/SecuritymarksName.java

@@ -18,8 +18,13 @@
 
 import com.google.api.resourcenames.ResourceName;
 
-/** AUTO-GENERATED DOCUMENTATION AND CLASS */
+/**
+ * AUTO-GENERATED DOCUMENTATION AND CLASS
+ *
+ * @deprecated This resource name class will be removed in the next major version.
+ */
 @javax.annotation.Generated("by GAPIC protoc plugin")
+@Deprecated
 public abstract class SecuritymarksName implements ResourceName {
   protected SecuritymarksName() {}
 }