Add Java Driver 4.x branches to documentation

Add Java Driver 4.x branches to the list of generated documentation
and bump the LATEST_VERSION variable.

(cherry picked from commit 76f7715)

Author: avelanarius

docs/source/conf.py

@@ -15,9 +15,9 @@
 
 # Build documentation for the following tags and branches
 TAGS = []
-BRANCHES = ['scylla-3.7.2.x', 'scylla-3.10.2.x', 'scylla-3.11.0.x', 'scylla-3.11.2.x']
+BRANCHES = ['scylla-3.7.2.x', 'scylla-3.10.2.x', 'scylla-3.11.0.x', 'scylla-3.11.2.x', 'scylla-4.7.2.x', 'scylla-4.10.0.x', 'scylla-4.11.1.x', 'scylla-4.12.0.x', 'scylla-4.13.0.x']
 # Set the latest version.
-LATEST_VERSION = 'scylla-3.11.2.x'
+LATEST_VERSION = 'scylla-4.13.0.x'
 # Set which versions are not released yet.
 UNSTABLE_VERSIONS = []
 # Set which versions are deprecated