Fix failing LangMustacheClientYamlTestSuiteIT yamlRestTestV7CompatTest (#112683)

The error message changed slightly to include the failure location. While this
was added to the main test yml file, the yamlRestTestV7CompatTest resources seem
to get copied from v7 files and we then modify them if we expect any changes.

Closes #112580

Author: cbuescher

modules/lang-mustache/build.gradle

@@ -29,4 +29,5 @@ restResources {
 tasks.named("yamlRestTestV7CompatTransform").configure {task ->
   task.addAllowedWarningRegex("\\[types removal\\].*")
   task.replaceValueInMatch("responses.1.error.root_cause.0.type", "x_content_e_o_f_exception", "Multi-search template with errors")
+  task.replaceValueInMatch("responses.1.error.root_cause.0.reason", "/\\[1:22\\].Unexpected.end.of.file/", "Multi-search template with errors")
 }

muted-tests.yml

@@ -154,9 +154,9 @@ tests:
   issue: https://github.com/elastic/elasticsearch/issues/112471
 - class: org.elasticsearch.ingest.geoip.IngestGeoIpClientYamlTestSuiteIT
   issue: https://github.com/elastic/elasticsearch/issues/111497
-- class: org.elasticsearch.script.mustache.LangMustacheClientYamlTestSuiteIT
-  method: test {yaml=lang_mustache/50_multi_search_template/Multi-search template with errors}
-  issue: https://github.com/elastic/elasticsearch/issues/112580
+- class: org.elasticsearch.smoketest.SmokeTestIngestWithAllDepsClientYamlTestSuiteIT
+  method: test {yaml=ingest/80_ingest_simulate/Test ingest simulate with reroute and mapping validation from templates}
+  issue: https://github.com/elastic/elasticsearch/issues/112575
 - class: org.elasticsearch.xpack.security.authc.kerberos.SimpleKdcLdapServerTests
   method: testClientServiceMutualAuthentication
   issue: https://github.com/elastic/elasticsearch/issues/112529