fix(cos): [143453387] tencentcloud_cos_bucket update filter_prefix property (#3419)

* add

* add

Author: SevenEarth

.changelog/3419.txt

@@ -0,0 +1,3 @@
+```release-note:enhancement
+resource/tencentcloud_cos_bucket: update `filter_prefix` property
+```

tencentcloud/services/cos/resource_tc_cos_bucket.go

@@ -358,7 +358,7 @@ func ResourceTencentCloudCosBucket() *schema.Resource {
 						},
 						"filter_prefix": {
 							Type:        schema.TypeString,
-							Required:    true,
+							Optional:    true,
 							Description: "Object key prefix identifying one or more objects to which the rule applies.",
 						},
 						"transition": {

website/docs/r/cos_bucket.html.markdown

@@ -491,9 +491,9 @@ The `expiration` object of `lifecycle_rules` supports the following:
 
 The `lifecycle_rules` object supports the following:
 
-* `filter_prefix` - (Required, String) Object key prefix identifying one or more objects to which the rule applies.
 * `abort_incomplete_multipart_upload` - (Optional, Set) Set the maximum time a multipart upload is allowed to remain running.
 * `expiration` - (Optional, Set) Specifies a period in the object's expire (documented below).
+* `filter_prefix` - (Optional, String) Object key prefix identifying one or more objects to which the rule applies.
 * `id` - (Optional, String) A unique identifier for the rule. It can be up to 255 characters.
 * `non_current_expiration` - (Optional, Set) Specifies when non current object versions shall expire.
 * `non_current_transition` - (Optional, Set) Specifies a period in the non current object's transitions.