feat(sql): addressed review comments

Author: kirangodishala

orca-sql/src/main/kotlin/com/netflix/spinnaker/orca/sql/pipeline/persistence/SqlExecutionRepository.kt

@@ -671,7 +671,7 @@ class SqlExecutionRepository(
     }
 
   override fun retrieveOrchestrationForCorrelationId(correlationId: String): PipelineExecution {
-    withPool(readPoolName) {
+    withPool(poolName) {
       val execution = jooq.selectExecution(ORCHESTRATION, compressionProperties)
         .where(
           field("id").eq(
@@ -705,7 +705,7 @@ class SqlExecutionRepository(
   }
 
   override fun retrievePipelineForCorrelationId(correlationId: String): PipelineExecution {
-    withPool(readPoolName) {
+    withPool(poolName) {
       val execution = jooq.selectExecution(PIPELINE, compressionProperties)
         .where(
           field("id").eq(