fix: rightsize web app instance

[infracost-autofix]

💰 Infracost opened this pull request as part of the following campaign:

Policy: AWS EC2 - consider rightsizing recommendation from AWS AWS Compute Optimizer and Cost Optimization Hub analyzes your resources’ configuration and utilization metrics to provide rightsizing recommendations. These are based on resource utilization metrics Amazon CloudWatch for the last 14 days, or 3 months if you opted into "Enhanced recommendations", see https://docs.aws.amazon.com/compute-optimizer/latest/ug/what-is-compute-optimizer.html for details. This policy maps the recommendation to the infrastructure code that requires action.	Potential savings: $1,945/yr
Risk: Medium Choosing incorrect instance sizes can degrade application performance.
Deployment details: requires downtime, see AWS docs for details Resizing an EC2 instance requires stopping and restarting it, resulting in brief service interruption

Next steps:
✅ Deploy this change before the campaign deadline: June 31
💬 Doesn't apply? Close the PR with a comment
🛠️ Needs changes? Check out the branch to rebase or adjust

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