chore(deps): update dependency mjml to v4.15.3 #12689

Job	Run time
release-candidate	0s
alpha / cli-artifacts	5m 50s
build / build-and-dockerize	6m 21s
code-style / eslint-and-prettier	4m 34s
test / db-migrations	1m 36s
db-types / diff	1m 41s
graphql-breaking-changes / search-token	1s
static-analysis / analyze (javascript)	2m 30s
storybook-preview / deployment	8s
static-analysis / analyze (typescript)	2m 28s
typescript / typecheck	3m 54s
test / unit	1m 47s
website-preview / deployment	10s
alpha / npm / snapshot	1m 20s
graphql-breaking-changes / check	9s
alpha / cli-test (macos-latest)	11s
alpha / cli-test (ubuntu-latest)	4s
test / e2e	1m 45s
test / integration (1)	2m 31s
test / integration (2)	2m 38s
test / integration (3)	2m 40s
	42m 18s

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