Dockerfile(deps): Bump composer from e7a1c40 to 20462d7

Bumps composer from `e7a1c40` to `20462d7`.

---
updated-dependencies:
- dependency-name: composer
  dependency-version: 2.8.10
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

Dockerfile

@@ -1,4 +1,4 @@
-FROM composer:2.8.10@sha256:e7a1c4019cf86dcf9547506cb406c279e119f174842f8b77b383370c6e0d7f57 AS builder
+FROM composer:2.8.10@sha256:20462d70afcfa999ad75dbd9333194067f4d869078bdb37430339e8d97e541d6 AS builder
 
 COPY composer.json /app/
 COPY composer.lock /app/