contracts-bedrock: move core-utils to deps

It was previously in dev dependencies which could
cause problems for production builds

.changeset/tricky-hotels-crash.md

+---
+'@eth-optimism/contracts-bedrock': patch
+---
+
+Move core-utils to deps instead of devdeps

packages/contracts-bedrock/package.json

@@ -13,6 +13,7 @@
     "deployments/**/*.json"
   ],
   "dependencies": {
+    "@eth-optimism/core-utils": "^0.8.6",
     "@openzeppelin/contracts": "^4.5.0",
     "@openzeppelin/contracts-upgradeable": "^4.5.2",
     "ethers": "^5.6.8",
@@ -40,7 +41,6 @@
     "lint": "yarn lint:fix && yarn lint:check"
   },
   "devDependencies": {
-    "@eth-optimism/core-utils": "^0.8.6",
     "@foundry-rs/hardhat-forge": "^0.1.5",
     "@nomiclabs/hardhat-ethers": "^2.0.0",
     "@nomiclabs/hardhat-etherscan": "^2.1.3",