Bump @solana/web3.js from 0.75.0 to 0.75.2 in /token-swap/js (#439)

Bumps [@solana/web3.js](https://github.com/solana-labs/solana-web3.js) from 0.75.0 to 0.75.2.
- [Release notes](https://github.com/solana-labs/solana-web3.js/releases)
- [Commits](https://github.com/solana-labs/solana-web3.js/compare/v0.75.0...v0.75.2)

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token-swap/js/package-lock.json

@@ -1692,9 +1692,9 @@
       "dev": true
     },
     "@solana/web3.js": {
-      "version": "0.75.0",
-      "resolved": "https://registry.npmjs.org/@solana/web3.js/-/web3.js-0.75.0.tgz",
-      "integrity": "sha512-goWSloQQbd7MLBxi/ViUvNIKg/uVQNVw/TvjsilZNnFiHv6WtNdUOnZFQbF8Nc7UDxeh+5TUbGkjavf0qzEbbA==",
+      "version": "0.75.2",
+      "resolved": "https://registry.npmjs.org/@solana/web3.js/-/web3.js-0.75.2.tgz",
+      "integrity": "sha512-2Cd39m5ffOMrokCCKC28YRGyonP6ZZMAR7oi/G0hngCsBKjBmz9PhdcaYmUc2hYVa6o5hPvbp/CUZ6ui23DJuQ==",
       "requires": {
         "@babel/runtime": "^7.3.1",
         "bn.js": "^5.0.0",
@@ -4207,9 +4207,9 @@
       },
       "dependencies": {
         "@types/node": {
-          "version": "12.12.56",
-          "resolved": "https://registry.npmjs.org/@types/node/-/node-12.12.56.tgz",
-          "integrity": "sha512-8OdIupOIZtmObR13fvGyTvpcuzKmMugkATeVcfNwCjGtHxhjEKmOvLqXwR8U9VOtNnZ4EXaSfNiLVsPinaCXkQ=="
+          "version": "12.12.58",
+          "resolved": "https://registry.npmjs.org/@types/node/-/node-12.12.58.tgz",
+          "integrity": "sha512-Be46CNIHWAagEfINOjmriSxuv7IVcqbGe+sDSg2SYCEz/0CRBy7LRASGfRbD8KZkqoePU73Wsx3UvOSFcq/9hA=="
         },
         "lodash": {
           "version": "4.17.20",

token-swap/js/package.json

@@ -29,7 +29,7 @@
   "license": "MIT",
   "dependencies": {
     "@babel/runtime": "^7.11.2",
-    "@solana/web3.js": "^0.75.0",
+    "@solana/web3.js": "^0.75.2",
     "bn.js": "^5.1.3",
     "buffer-layout": "^1.2.0",
     "dotenv": "8.2.0",