Flush cache before and after upgrade for self-hosts (#17800)

as per title

packages/twenty-docker/twenty/entrypoint.sh

@@ -17,7 +17,10 @@ setup_and_migrate_db() {
         yarn database:migrate:prod
     fi
 
+    yarn command:prod cache:flush
     yarn command:prod upgrade
+    yarn command:prod cache:flush
+
     echo "Successfully migrated DB!"
 }
 

packages/twenty-server/src/database/commands/command-runners/workspaces-migration.command-runner.ts

@@ -135,7 +135,7 @@ export abstract class WorkspacesMigrationCommandRunner<
 
     for (const [index, workspaceId] of workspaceIdsToProcess.entries()) {
       this.logger.log(
-        `Running command on workspace ${workspaceId} ${index + 1}/${workspaceIdsToProcess.length}`,
+        `Upgrading workspace ${workspaceId} ${index + 1}/${workspaceIdsToProcess.length}`,
       );
 
       try {