fix(link-module): Migration planner not closing connection correctly (#8881)

RESOLVES CC-405

**What**
Fixing mikro orm connection not closed during sync-links

packages/modules/link-modules/src/migration/index.ts

@@ -239,6 +239,7 @@ export class MigrationsExecutionPlanner implements ILinkMigrationsPlanner {
     const tableName = entity.meta.collection
     const orm = await this.createORM([entity])
 
+    try {
       const generator = orm.getSchemaGenerator()
       const platform = orm.em.getPlatform()
       const connection = orm.em.getConnection()
@@ -296,7 +297,6 @@ export class MigrationsExecutionPlanner implements ILinkMigrationsPlanner {
         return updateSQL.match(new RegExp(`${fragment}`, "ig"))
       })
 
-    try {
       return {
         action: usesUnsafeCommands ? "notify" : "update",
         linkDescriptor,
@@ -317,6 +317,8 @@ export class MigrationsExecutionPlanner implements ILinkMigrationsPlanner {
    */
   async createPlan() {
     const orm = await this.createORM()
+
+    try {
       await this.ensureMigrationsTable(orm)
 
       const executionActions: LinkMigrationsPlannerAction[] = []
@@ -324,7 +326,9 @@ export class MigrationsExecutionPlanner implements ILinkMigrationsPlanner {
       await this.ensureMigrationsTableUpToDate(orm)
 
       const trackedTables = await this.getTrackedLinksTables(orm)
-    const trackedTablesNames = trackedTables.map(({ table_name }) => table_name)
+      const trackedTablesNames = trackedTables.map(
+        ({ table_name }) => table_name
+      )
 
       /**
        * Looping through the new set of entities and generating
@@ -347,7 +351,10 @@ export class MigrationsExecutionPlanner implements ILinkMigrationsPlanner {
       /**
        * Finding the tables to be removed
        */
-    const tablesToRemove = arrayDifference(trackedTablesNames, linksTableNames)
+      const tablesToRemove = arrayDifference(
+        trackedTablesNames,
+        linksTableNames
+      )
       tablesToRemove.forEach((tableToRemove) => {
         executionActions.push({
           action: "delete",
@@ -358,7 +365,6 @@ export class MigrationsExecutionPlanner implements ILinkMigrationsPlanner {
         })
       })
 
-    try {
       return executionActions
     } finally {
       await orm.close(true)