chore: redirect old Crawlee JS versions to the latest one (#1705)

We're planning to remove some of the Crawlee versions from the
documentation, as this worsens the DX and leads to longer build times.

This PR adds permanent `nginx` redirects for _all single-digit minor 3.x
versions_ to the `latest` documentation.

Author: barjin

nginx.conf

@@ -437,6 +437,10 @@ server {
   rewrite ^/docs(.*)$ /js/docs$1 permanent;
   rewrite ^/api(.*)$ /js/api$1 permanent;
 
+  # Remove version numbers from /js/api/3.[0-9]/* and /js/docs/3.[0-9]/*
+  rewrite ^/js/api/3\.\d(/.*)?$ /js/api$1 permanent;
+  rewrite ^/js/docs/3\.\d(/.*)?$ /js/docs$1 permanent;
+
   # Redirect rule for "upgrading-to-v03" to "upgrading-to-v0x"
   rewrite ^/python/docs/upgrading/upgrading-to-v03$ /python/docs/upgrading/upgrading-to-v0x permanent;
 
@@ -487,4 +491,4 @@ server {
     location / {
         proxy_pass https://s3.amazonaws.com/apify-docs-preview/$subdomain$uri;
     }
-}
+}