Dockerfile(deps): Bump composer from 4038554 to fb3c5a2

Bumps composer from `4038554` to `fb3c5a2`.

---
updated-dependencies:
- dependency-name: composer
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Dockerfile

@@ -1,4 +1,4 @@
-FROM composer:2.6.5@sha256:403855481b9b080ee79c29b301b8d1817b7ad183d477dd2c1de243831a9256d3 AS builder
+FROM composer:2.6.5@sha256:fb3c5a283f2dc08e08841048498e8a82c3864648c84255b5ad7243b38d33a8db AS builder
 
 COPY composer.json /app/
 COPY composer.lock /app/