Update esbuild documentation (0.15.7)

lib/docs/scrapers/esbuild.rb

@@ -16,7 +16,7 @@ module Docs
       Licensed under the MIT License.
     HTML
 
-    self.release = '0.14.2'
+    self.release = '0.15.7'
     self.base_url = 'https://esbuild.github.io/'
     html_filters.push 'esbuild/clean_html', 'esbuild/entries'