Skip update/100_synthetic_source tests in yamlRestCompatTests (#132296) (#132425)

(cherry picked from commit 7d2de6b)

# Conflicts:
#	muted-tests.yml

Author: jordan-powers

rest-api-spec/build.gradle

@@ -90,4 +90,6 @@ tasks.named("yamlRestCompatTestTransform").configure ({ task ->
   task.skipTest("indices.create/21_synthetic_source_stored/field param - keep root array", "Synthetic source keep arrays now stores leaf arrays natively")
   task.skipTest("cluster.info/30_info_thread_pool/Cluster HTTP Info", "The search_throttled thread pool has been removed")
   task.skipTest("synonyms/80_synonyms_from_index/Fail loading synonyms from index if synonyms_set doesn't exist", "Synonyms do no longer fail if the synonyms_set doesn't exist")
+  task.skipTest("update/100_synthetic_source/keyword", "synthetic recovery source means _recovery_source field will not be present")
+  task.skipTest("update/100_synthetic_source/stored text", "synthetic recovery source means _recovery_source field will not be present")
 })