chore: source docs version from package.json, not npm view

bump-docs.cjs read the version from `npm view fuse.js version` (the
latest published version). The release flow runs `npm run docs:bump`
before `npm publish`, so it saw the previous version and bumped the docs
one release behind (hit on 7.4.1). Read from the local package.json,
which standard-version bumps before the docs step, so it reflects the
version being cut. Also drops the network call and child_process use.

Author: krisk

scripts/bump-docs.cjs

@@ -1,7 +1,10 @@
 //Load the library and specify options
-const { execSync } = require('child_process')
 const replace = require('replace-in-file')
-const VERSION = process.env.VERSION || execSync('npm view fuse.js version').toString().trim()
+// Use the version in package.json (the one being released) rather than the
+// latest published version from `npm view` -- otherwise running this before
+// `npm publish` (as the release flow does) bumps the docs to the previous
+// version and lags one release behind.
+const VERSION = process.env.VERSION || require('../package.json').version
 
 const options = {
   files: './docs/getting-started.md',