chore: update dependencies

hardhat.config.js

@@ -13,7 +13,7 @@ module.exports = {
     },
   },
   solidity: {
-    version: '0.8.5',
+    version: '0.8.7',
     settings: {
       optimizer: {
         enabled: true,

package.json

@@ -1,6 +1,6 @@
 {
   "name": "erc-payable-token",
-  "version": "4.1.1",
+  "version": "4.2.0",
   "description": "ERC-1363 Payable Token Implementation",
   "files": [
     "contracts",
@@ -47,30 +47,30 @@
   },
   "homepage": "https://vittominacori.github.io/erc1363-payable-token",
   "dependencies": {
-    "@openzeppelin/contracts": "4.1.0"
+    "@openzeppelin/contracts": "4.2.0"
   },
   "devDependencies": {
-    "@nomiclabs/hardhat-ganache": "^2.0.0",
+    "@nomiclabs/hardhat-ganache": "^2.0.1",
     "@nomiclabs/hardhat-truffle5": "^2.0.0",
     "@nomiclabs/hardhat-web3": "^2.0.0",
-    "@openzeppelin/test-helpers": "^0.5.11",
+    "@openzeppelin/test-helpers": "^0.5.13",
     "@vuepress/plugin-google-analytics": "^1.8.2",
     "chai": "^4.3.4",
-    "eslint": "^7.28.0",
+    "eslint": "^7.32.0",
     "eslint-config-standard": "^16.0.3",
-    "eslint-plugin-import": "^2.23.4",
+    "eslint-plugin-import": "^2.24.0",
     "eslint-plugin-mocha-no-only": "^1.1.1",
     "eslint-plugin-node": "^11.1.0",
     "eslint-plugin-promise": "^5.1.0",
     "eslint-plugin-standard": "^5.0.0",
     "ganache-cli": "^6.12.2",
-    "hardhat": "^2.3.0",
-    "prettier": "^2.3.1",
-    "prettier-plugin-solidity": "^1.0.0-beta.13",
+    "hardhat": "^2.6.0",
+    "prettier": "^2.3.2",
+    "prettier-plugin-solidity": "^1.0.0-beta.17",
     "solhint": "^3.3.6",
     "solhint-plugin-prettier": "^0.0.5",
     "solidity-coverage": "^0.7.16",
-    "truffle": "^5.3.9",
+    "truffle": "^5.4.6",
     "vuepress": "^1.8.2"
   }
 }

truffle-config.js

@@ -1,7 +1,7 @@
 require('chai/register-should');
 
 const solcStable = {
-  version: '0.8.5',
+  version: '0.8.7',
   settings: {
     optimizer: {
       enabled: true,