Bump composer from 2.7.9 to 2.8.0 in /docker #3875

# to view logs

Job	Run time
Sass,CSS [StyleLint]	34s
Sass,CSS,MD,YAML formatting [Prettier]	36s
Symfony Container [Lint]	43s
JavaScript [ESLint]	31s
Twig [Lint]	42s
Yaml [Lint]	43s
PHP Static Analysis [PhpCPD]	14s
PHP Code Style [Php-CS-Fixer]	51s
PHP Info [PhpLoc]	9s
PHP Static Analysis [Php-Stan]	1m 6s
PHP Static Analysis [Psalm]	1m 11s
	7m 20s

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