Skip tests in rest-compat that fail due to versioning issues (#121282)

Author: kkrik-es

muted-tests.yml

@@ -341,8 +341,6 @@ tests:
   issue: https://github.com/elastic/elasticsearch/issues/121253
 - class: org.elasticsearch.lucene.FullClusterRestartLuceneIndexCompatibilityIT
   issue: https://github.com/elastic/elasticsearch/issues/121257
-- class: org.elasticsearch.test.rest.ClientYamlTestSuiteIT
-  issue: https://github.com/elastic/elasticsearch/issues/121269
 - class: org.elasticsearch.upgrades.VectorSearchIT
   method: testBBQVectorSearch {upgradedNodes=1}
   issue: https://github.com/elastic/elasticsearch/issues/121271

rest-api-spec/build.gradle

@@ -100,4 +100,16 @@ tasks.named("yamlRestCompatTestTransform").configure ({ task ->
   task.skipTest("index/91_metrics_no_subobjects/Metrics object indexing with synthetic source", "_source.mode mapping attribute is no-op since 9.0.0")
   task.skipTest("index/91_metrics_no_subobjects/Root without subobjects with synthetic source", "_source.mode mapping attribute is no-op since 9.0.0")
   task.skipTest("logsdb/10_settings/routing path allowed in logs mode with routing on sort fields", "Unknown feature routing.logsb_route_on_sort_fields")
+
+  task.skipTest("search/520_fetch_fields/fetch _seq_no via fields", "Skip until versioning between 8.x and 9.x is restored")
+  task.skipTest("search/90_search_after/_shard_doc sort", "Skip until versioning between 8.x and 9.x is restored")
+  task.skipTest("tsdb/90_unsupported_operations/search with routing", "Skip until versioning between 8.x and 9.x is restored")
+  task.skipTest("tsdb/90_unsupported_operations/noop update", "Skip until versioning between 8.x and 9.x is restored")
+  task.skipTest("tsdb/80_index_resize/split", "Skip until versioning between 8.x and 9.x is restored")
+  task.skipTest("tsdb/90_unsupported_operations/index with routing over _bulk", "Skip until versioning between 8.x and 9.x is restored")
+  task.skipTest("tsdb/90_unsupported_operations/index with routing", "Skip until versioning between 8.x and 9.x is restored")
+  task.skipTest("tsdb/90_unsupported_operations/update over _bulk", "Skip until versioning between 8.x and 9.x is restored")
+  task.skipTest("tsdb/90_unsupported_operations/regular update", "Skip until versioning between 8.x and 9.x is restored")
+  task.skipTest("tsdb/25_id_generation/delete over _bulk", "Skip until versioning between 8.x and 9.x is restored")
+  task.skipTest("tsdb/20_mapping/exact match object type", "Skip until versioning between 8.x and 9.x is restored")
 })