fix: add fs and go-ipfs to browser ignores (#451)

We add execa to the browser ignores but we need to add fs and go-ipfs as well.

We can revert this once we drop CJS support since we're changing the package.json generated by ipjs and with just ESM we won't need ipjs any more.

package.json

@@ -147,7 +147,7 @@
   "scripts": {
     "clean": "rimraf /tmp/js-ipfs /tmp/go-ipfs ./go-libp2p-relay-daemon dist types",
     "lint": "aegir lint",
-    "build": "aegir build --esm-tests && cp -R types scripts bin test src .aegir.cjs dist && cp bin/package.json dist/src && cp bin/package.json dist/test && npx json -I -f dist/package.json -e 'this.browser.execa=false'",
+    "build": "aegir build --esm-tests && cp -R types scripts bin test src .aegir.cjs dist && cp bin/package.json dist/src && cp bin/package.json dist/test && npx json -I -f dist/package.json -e 'this.browser.execa=false; this.browser.fs=false; this.browser[\"go-ipfs\"]=false'",
     "release": "semantic-release",
     "postinstall": "cross-env node ./scripts/setup-libp2p-relay-daemon.js",
     "pretest": "aegir build --esm-tests",