feat(ui): bump mod-arch packages to 1.15.3 and use McpCatalogIcon #8031

Job	Run time
mypy	37s
Check autogenerated code is in sync (3.12, 20)	41s
docs-build	54s
Catalog E2E	2m 44s
E2E Py 3.12 K8s v1.33.7 DB db	5m 22s
E2E Py 3.12 K8s v1.33.7 DB postgres	4m 51s
E2E Py 3.14 K8s v1.34.3 DB db	5m 2s
lint	30s
E2E Py 3.13 K8s v1.34.3 DB db	5m 16s
E2E Py 3.11 K8s v1.33.7 DB db	5m 5s
E2E Py 3.10 K8s v1.33.7 DB db	5m 5s
	36m 7s

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