ESQL: Unmute test

It was assuming a simpler execution model. This weakens the assertion to
one that should always pass.

Closes #127046

Author: nik9000

muted-tests.yml

@@ -414,9 +414,6 @@ tests:
 - class: org.elasticsearch.repositories.blobstore.testkit.analyze.RepositoryAnalysisFailureIT
   method: testFailsOnReadError
   issue: https://github.com/elastic/elasticsearch/issues/127029
-- class: org.elasticsearch.xpack.test.rest.XPackRestIT
-  method: test {p0=esql/10_basic/basic with documents_found}
-  issue: https://github.com/elastic/elasticsearch/issues/127039
 - class: org.elasticsearch.xpack.esql.qa.multi_node.EsqlSpecIT
   method: test {rerank.Reranker before a limit ASYNC}
   issue: https://github.com/elastic/elasticsearch/issues/127051

x-pack/plugin/src/yamlRestTest/resources/rest-api-spec/test/esql/10_basic.yml

@@ -197,8 +197,8 @@ basic with documents_found:
           query: 'from test | keep data | sort data | limit 2'
           columnar: true
 
-  - match: {documents_found: 10}   # two documents per shard
-  - match: {values_loaded: 10}     # one per document
+  - gte:   {documents_found: 2}   # we might early terminate, so the most we can assume is >=2
+  - gte:   {values_loaded: 2}     # same as above
   - match: {columns.0.name: "data"}
   - match: {columns.0.type: "long"}
   - match: {values.0: [1, 1]}