Update composer Docker tag to v2.2.9

This MR contains the following updates:

Package	Type	Update	Change
composer	final	patch	2.2.7 -> 2.2.9
composer	stage	patch	2.2.7 -> 2.2.9

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Dockerfile

-FROM composer:2.2.7 as build
+FROM composer:2.2.9 as build
 
 ADD . /build
 WORKDIR /build