update solc version

buidler.config.js

@@ -13,7 +13,7 @@ module.exports = {
     },
   },
   solc: {
-    version: '0.6.10',
+    version: '0.6.12',
     optimizer: {
       enabled: true,
       runs: 200,

package.json

@@ -56,34 +56,34 @@
   ],
   "license": "MIT",
   "devDependencies": {
-    "@nomiclabs/buidler": "^1.3.8",
+    "@nomiclabs/buidler": "^1.4.4",
     "@nomiclabs/buidler-ganache": "^1.3.3",
     "@nomiclabs/buidler-truffle5": "^1.3.4",
     "@nomiclabs/buidler-web3": "^1.3.4",
     "@openzeppelin/test-helpers": "^0.5.6",
-    "@vuepress/plugin-google-analytics": "^1.5.2",
+    "@vuepress/plugin-google-analytics": "^1.5.3",
     "chai": "^4.2.0",
     "coveralls": "^3.1.0",
-    "eslint": "^7.3.1",
+    "eslint": "^7.7.0",
     "eslint-config-standard": "^14.1.1",
     "eslint-plugin-import": "^2.22.0",
-    "eslint-plugin-mocha-no-only": "^1.1.0",
+    "eslint-plugin-mocha-no-only": "^1.1.1",
     "eslint-plugin-node": "^11.1.0",
     "eslint-plugin-promise": "^4.2.1",
     "eslint-plugin-standard": "^4.0.1",
-    "ethereumjs-util": "^7.0.2",
+    "ethereumjs-util": "^7.0.4",
     "ethjs-abi": "^0.2.1",
-    "ganache-cli": "^6.10.0-beta.2",
+    "ganache-cli": "^6.10.1",
     "lite-server": "^2.5.4",
     "pify": "^5.0.0",
     "sol2uml": "^1.1.17",
-    "solhint": "^3.0.0",
+    "solhint": "^3.2.0",
     "solidity-coverage": "^0.7.9",
     "surya": "^0.4.0",
-    "truffle": "^5.1.32",
+    "truffle": "^5.1.41",
     "truffle-flattener": "^1.4.4",
-    "vuepress": "^1.5.2",
-    "web3": "^1.2.9"
+    "vuepress": "^1.5.3",
+    "web3": "^1.2.11"
   },
   "dependencies": {
     "@openzeppelin/contracts": "3.1.0",

truffle-config.js

@@ -1,7 +1,7 @@
 require('chai/register-should');
 
 const solcStable = {
-  version: '0.6.10',
+  version: '0.6.12',
   settings: {
     optimizer: {
       enabled: true,