chore: upgrade bun runtime version to 1.2.20

- Updates Dockerfile ARG BUN_VERSION from 1.0.0 to 1.2.20
- Resolves lockfile compatibility issues with newer bun versions
- Ensures consistency between local and Docker environments

s3-nodejs-api/Dockerfile

@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1
 
-ARG BUN_VERSION=1.0.0
+ARG BUN_VERSION=1.2.20
 
 FROM oven/bun:${BUN_VERSION} AS base
 WORKDIR /app