[Stack 9.4.0-SNAPSHOT] [oracle] Failing test daily: system test: (elastic-agent logs - memory) in oracle.memory

- Stack version: 9.4.0-SNAPSHOT
- Package: oracle
- Failing test: system test: (elastic-agent logs - memory)
- DataStream: memory
- Owners:
- @elastic/obs-infraobs-integrations

Failure:
```
test case failed: one or more errors found while examining elastic-agent.logs1928452493: [0] found error "Component state changed sql/metrics-default (HEALTHY->DEGRADED): Recoverable: Error fetching data for metricset sql.query: cannot open connection: testing connection: user=\"sys\" standalone params={authMode:2 connectionClass: connectionClassLength:0 purity:0 newPassword: newPasswordLength:0 appContext: numAppContext:0 externalAuth:0 externalHandle: pool: tag: tagLength:0 matchAnyTag:0 outTag: outTagLength:0 outTagFound:0 shardingKeyColumns: numShardingKeyColumns:0 superShardingKeyColumns: numSuperShardingKeyColumns:0 outNewSession:0}: ORA-12541: TNS:no listener"
[1] found error "Unit state changed sql/metrics-default-sql/metrics-oracle-6ac33f45-6302-45f6-984b-4a3b7c5c8dd1 (HEALTHY->DEGRADED): Recoverable: Error fetching data for metricset sql.query: cannot open connection: testing connection: user=\"sys\" standalone params={authMode:2
```

First build failed: https://buildkite.com/elastic/integrations/builds/40044

Latest 5 failed builds:
- https://buildkite.com/elastic/integrations/builds/40861
- https://buildkite.com/elastic/integrations/builds/40867
- https://buildkite.com/elastic/integrations/builds/40897
- https://buildkite.com/elastic/integrations/builds/41002
- https://buildkite.com/elastic/integrations/builds/41120