chore: update dependencies to latest versions (rns 1.4.2, lxst 0.5.1)… #464

Job	Run time
Visualiser WASM (Go)	25s
Headless Self-Check (macos-latest)	48s
Localization tests	1m 2s
Headless Self-Check (windows-latest)	2m 51s
Build frontend artifact / Build frontend artifact	56s
Backend tests (Python 3.14) - Shard 0 / 4	4m 56s
Headless Self-Check (ubuntu-latest)	56s
Backend tests (Python 3.14) - Shard 3 / 4	4m 33s
Frontend tests	3m 25s
Backend tests (Python 3.14) - Shard 1 / 4	3m 25s
Lint	1m 34s
Backend tests (Python 3.14) - Shard 2 / 4	4m 40s
E2E smoke	1m 30s
Linux build check	1m 30s
Native build (macos)	7m 15s
Native build (windows)	5m 33s
Validate Linux build artifact	15s
	45m 34s

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