Update hardhat dependencies

Use more recent versions of hardhat packages.

package.json

@@ -44,12 +44,13 @@
     "@tenderly/hardhat-tenderly": "^1.0.12"
   },
   "devDependencies": {
-    "@keep-network/hardhat-helpers": "^0.2.0-pre",
+    "@keep-network/hardhat-helpers": "^0.6.0-pre.10",
     "@keep-network/hardhat-local-networks-config": "0.1.0-pre.0",
     "@keep-network/prettier-config-keep": "github:keep-network/prettier-config-keep#d6ec02e",
-    "@nomiclabs/hardhat-ethers": "^2.0.2",
-    "@nomiclabs/hardhat-etherscan": "^2.1.6",
-    "@nomiclabs/hardhat-waffle": "^2.0.1",
+    "@nomiclabs/hardhat-ethers": "^2.0.6",
+    "@nomiclabs/hardhat-waffle": "^2.0.2",
+    "@nomiclabs/hardhat-etherscan": "^2.1.4",
+    "@openzeppelin/hardhat-upgrades": "^1.17.0",
     "@types/chai": "^4.2.20",
     "@types/mocha": "^8.2.3",
     "@types/node": "^16.0.1",
@@ -58,10 +59,10 @@
     "eslint-config-keep": "github:keep-network/eslint-config-keep#0c27ade",
     "ethereum-waffle": "^3.4.0",
     "ethers": "^5.0.32",
-    "hardhat": "^2.6.4",
-    "hardhat-dependency-compiler": "^1.1.1",
-    "hardhat-deploy": "^0.9.1",
-    "hardhat-gas-reporter": "^1.0.4",
+    "hardhat": "^2.8.3",
+    "hardhat-dependency-compiler": "^1.1.2",
+    "hardhat-deploy": "^0.9.27",
+    "hardhat-gas-reporter": "^1.0.6",
     "prettier": "^2.3.2",
     "prettier-plugin-sh": "^0.7.1",
     "prettier-plugin-solidity": "^1.0.0-beta.14 ",