Audit fixes to collateral extension #604

Job	Run time
Run scenarios (development)	3m 47s
Run scenarios (mainnet)	7m 11s
Run scenarios (mainnet-weth)	4m 59s
Run scenarios (mainnet-usdt)	4m 12s
Run scenarios (mainnet-wsteth)	6m 20s
Run scenarios (mainnet-usds)	4m 11s
Run scenarios (sepolia-usdc)	4m 33s
Run scenarios (sepolia-weth)	4m 18s
Run scenarios (fuji)	4m 30s
Run scenarios (polygon)	7m 12s
Run scenarios (polygon-usdt)	6m 23s
Run scenarios (arbitrum-usdc.e)	5m 52s
Run scenarios (arbitrum-usdc)	8m 42s
Run scenarios (arbitrum-weth)	10m 31s
Run scenarios (arbitrum-usdt)	8m 23s
Run scenarios (base-usdbc)	7m 31s
Run scenarios (base-weth)	8m 59s
Run scenarios (base-usdc)	8m 55s
Run scenarios (base-aero)	10m 55s
Run scenarios (optimism-usdc)	7m 24s
Run scenarios (optimism-usdt)	7m 45s
Run scenarios (optimism-weth)	6m 51s
Run scenarios (mantle-usde)	7m 21s
Run scenarios (scroll-usdc)	6m 46s
	2h 43m 31s

Provide feedback