Update topic schema + add migration for weighted topics #27084

Job	Run time
Code Quality Recommendations (20)	44s
Code Quality checks (20)	5m 14s
EVM Devnet Tests (20)	8m 39s
Cosmos Devnet Tests (20)	7m 26s
Commonwealth Unit And Integration Tests (20)	9m 26s
Detect Broken TS expect errors (20)	1m 49s
Commonwealth Mature E2E Tests (20)	3m 16s
Commonwealth E2E Tests (20)	7m 42s
Commonwealth E2E Tests Serial (20)	3m 56s
Upload Test Coverage Report (20)	3s
	48m 15s

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