deprecated existing beta fields in TPG (#4632) (#8970)

* deprecated existing beta fields in TPG

* description updated for deprecated attributes for google provider

Signed-off-by: Modular Magician <magic-modules@google.com>

Author: modular-magician

.changelog/4632.txt

@@ -0,0 +1,9 @@
+```release-note:deprecation
+compute: deprecated `min_ready_sec` in `google_compute_region_instance_group_manager` & `google_compute_instance_group_manager` in GA
+```
+```release-note:deprecation
+compute: deprecated `distribution_policy_target_shape` in `google_compute_region_instance_group_manager` in GA
+```
+```release-note:deprecation
+container: deprecated `pod_security_policy_config` field on resource `google_container_cluster` in GA
+```

google/resource_compute_instance_group_manager.go

@@ -251,6 +251,7 @@ func resourceComputeInstanceGroupManager() *schema.Resource {
 							Optional:     true,
 							ValidateFunc: validation.IntBetween(0, 3600),
 							Description:  `Minimum number of seconds to wait for after a newly created instance becomes available. This value must be from range [0, 3600].`,
+							Deprecated:   `This attribute is currently in beta and will be removed from the google provider. Please use the google-beta provider to continue using this attribute.`,
 						},
 						"replacement_method": {
 							Type:             schema.TypeString,

google/resource_compute_region_instance_group_manager.go

@@ -219,6 +219,7 @@ func resourceComputeRegionInstanceGroupManager() *schema.Resource {
 				ForceNew:    true,
 				Computed:    true,
 				Description: `The shape to which the group converges either proactively or on resize events (depending on the value set in updatePolicy.instanceRedistributionType).`,
+				Deprecated:  `This attribute is currently in beta and will be removed from the google provider. Please use the google-beta provider to continue using this attribute.`,
 			},
 
 			"update_policy": {
@@ -280,6 +281,7 @@ func resourceComputeRegionInstanceGroupManager() *schema.Resource {
 							Optional:     true,
 							ValidateFunc: validation.IntBetween(0, 3600),
 							Description:  `Minimum number of seconds to wait for after a newly created instance becomes available. This value must be from range [0, 3600].`,
+							Deprecated:   `This attribute is currently in beta and will be removed from the google provider. Please use the google-beta provider to continue using this attribute.`,
 						},
 						"instance_redistribution_type": {
 							Type:             schema.TypeString,

google/resource_container_cluster.go

@@ -660,6 +660,7 @@ func resourceContainerCluster() *schema.Resource {
 				Optional:    true,
 				MaxItems:    1,
 				Description: `Configuration for the PodSecurityPolicy feature.`,
+				Deprecated:  `This attribute is currently in beta and will be removed from the google provider. Please use the google-beta provider to continue using this attribute.`,
 				Elem: &schema.Resource{
 					Schema: map[string]*schema.Schema{
 						"enabled": {