chore: upgrade sdk-core to latest (#139)

* chore: upgrade sdk-core to latest

* Fix code style issues with Prettier

---------
Co-authored-by: Lint Action <lint-action@samuelmeuli.com>

package.json

@@ -24,7 +24,7 @@
   "dependencies": {
     "@ethersproject/address": "^5.0.0",
     "@ethersproject/solidity": "^5.0.0",
-    "@uniswap/sdk-core": "^3.0.0-alpha.3",
+    "@uniswap/sdk-core": "^4.0.2",
     "tiny-invariant": "^1.1.0",
     "tiny-warning": "^1.0.3"
   },

yarn.lock

@@ -1706,10 +1706,10 @@
     semver "^7.3.2"
     tsutils "^3.17.1"
 
-"@uniswap/sdk-core@^3.0.0-alpha.3":
-  version "3.0.0-alpha.3"
-  resolved "https://registry.yarnpkg.com/@uniswap/sdk-core/-/sdk-core-3.0.0-alpha.3.tgz#a742b430a9587fe48384aa5007706d225497c875"
-  integrity sha512-SS6fFbFZT2s/oq1dCdbqLGppVszfL1dkP8uQOIgXm9qecH9Vt70zTwQU73bLP2VskFZcpkN5inTAwSZiZSs5wA==
+"@uniswap/sdk-core@^4.0.2":
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/@uniswap/sdk-core/-/sdk-core-4.0.2.tgz#2eca2b5bf00bad74519aef918465c19218285b4b"
+  integrity sha512-rR5xobsAAP4yMYC7C+0+duVx0pFoDn2lV9kTWpoKgH1WJuw7hD1uDEvuevU2dL89TuixVgGvnYd0QxmrMtsIlg==
   dependencies:
     "@ethersproject/address" "^5.0.2"
     big.js "^5.2.2"