Upgrade solc dependencies to v0.8.20

packages/compile-solidity-tests/package.json

@@ -35,7 +35,7 @@
     "fs-extra": "^9.1.0",
     "mocha": "10.1.0",
     "sinon": "^9.0.2",
-    "solc": "0.8.19",
+    "solc": "0.8.20",
     "tmp": "^0.2.1",
     "ts-node": "10.7.0",
     "typescript": "^4.7.4"

packages/compile-solidity/package.json

@@ -34,7 +34,7 @@
     "original-require": "^1.0.1",
     "require-from-string": "^2.0.2",
     "semver": "7.3.7",
-    "solc": "0.8.19"
+    "solc": "0.8.20"
   },
   "devDependencies": {
     "@truffle/artifactor": "^4.0.189",

packages/contract-schema/package.json

@@ -30,7 +30,7 @@
   "devDependencies": {
     "json-schema-to-typescript": "^5.5.0",
     "mocha": "10.1.0",
-    "solc": "0.8.19"
+    "solc": "0.8.20"
   },
   "keywords": [
     "artifacts",

yarn.lock

@@ -23216,10 +23216,10 @@ [email protected]:
     semver "^5.5.0"
     tmp "0.0.33"
 
-[email protected].19:
-  version "0.8.19"
-  resolved "https://registry.yarnpkg.com/solc/-/solc-0.8.19.tgz#cac6541106ae3cff101c740042c7742aa56a2ed3"
-  integrity sha512-yqurS3wzC4LdEvmMobODXqprV4MYJcVtinuxgrp61ac8K2zz40vXA0eSAskSHPgv8dQo7Nux39i3QBsHx4pqyA==
+[email protected].20:
+  version "0.8.20"
+  resolved "https://registry.yarnpkg.com/solc/-/solc-0.8.20.tgz#b49151cf5ecc8de088d3d32b0afb607b3522ba8d"
+  integrity sha512-fPRnGspIEqmhu63RFO3pc79sLA7ZmzO0Uy0L5l6hEt2wAsq0o7UV6pXkAp3Mfv9IBhg7Px/oTu3a+y4gs3BWrQ==
   dependencies:
     command-exists "^1.2.8"
     commander "^8.1.0"