Add v2 endpoints for RUM retention filters.

[api-clients-generation-pipeline]

See DataDog/datadog-api-spec#3617
Test branch datadog-api-spec/test/kwangjun.kim/RUM-8778/1/retenion-filter-api-spec

[datadog-datadog-prod-us1]

Datadog Report

All test runs 3448ec0 🔗

❌ 5 Total Test Services: 4 Failed, 0 Passed

Test Services

Service Name	Failed	Known Flaky	New Flaky	Passed	Skipped	Total Time	Test Service View
surefirebooter16847130660026306286	1	0	0	1201	36	0s	Link
surefirebooter3401276699502045755	1	0	0	1201	36	0s	Link
surefirebooter4139160151839927954	1	0	0	1201	36	0s	Link
surefirebooter7121967455781665836	1	0	0	1201	36	0s	Link
org.codehaus.plexus.classworlds.launcher.launcher	0	0	0	0	0	4m 5.63s	Link

❌ Failed Tests (4)

• Update a RUM retention filter returns "Bad Request" response - classpath:com/datadog/api/client/v2/api/rum_retention_filters.feature:Rum Retention Filters

• Update a RUM retention filter returns "Bad Request" response - classpath:com/datadog/api/client/v2/api/rum_retention_filters.feature:Rum Retention Filters

• Update a RUM retention filter returns "Bad Request" response - classpath:com/datadog/api/client/v2/api/rum_retention_filters.feature:Rum Retention Filters - Details

  Expand for error

   Missing required creator property 'id' (index 1)
    at [Source: (String)"{"data":{"type":"invalid_type","attributes":{"id":"Test-Update_a_RUM_retention_filter_returns_Bad_Request_response-1741036884","name":"Test updating retention filter","event_type":"view","query":"","sample_rate":100,"enabled":true}}}"; line: 1, column: 232] (through reference chain: com.datadog.api.client.v2.model.RumRetentionFilterUpdateRequest["data"]->com.datadog.api.client.v2.model.RumRetentionFilterUpdateData["id"])
  

• Update a RUM retention filter returns "Bad Request" response - classpath:com/datadog/api/client/v2/api/rum_retention_filters.feature:Rum Retention Filters