Add main branch to elasticsearch-net repo to docs build. (#2196)

Author: szabosteve

conf.yaml

@@ -354,6 +354,7 @@ contents:
                 repo:   elasticsearch-net
                 path:   examples
                 exclude_branches:   [ 7.17, 7.16, 7.15, 7.14, 7.13, 7.12, 7.11, 7.10, 7.9, 7.8, 7.7, 7.6, 7.5, 7.4, 7.3, 7.2, 7.1, 7.0, 6.8, 6.7, 6.6, 6.5, 6.4, 6.3, 6.2, 6.1, 6.0, 5.6, 5.5, 5.4, 5.3, 5.2, 5.1, 5.0, 2.4, 2.3, 2.2, 2.1, 2.0, 1.7, 1.6, 1.5, 1.4, 1.3, 0.90 ]
+                map_branches: *mapMainToMaster
               -
                 alternatives: { source_lang: console, alternative_lang: python }
                 repo:   elasticsearch-py
@@ -542,10 +543,11 @@ contents:
                     path:   .doc/
               - title:      .NET Clients
                 prefix:     net-api
+                # The elasticsearch-net repo only keeps .x branches. Do not
+                # bump these with the rest of the stack.
                 current:    7.16
-                # need to keep 7.x until all tooling is switched over to 7.16
-                branches:   [ master, 8.0, 7.17, 7.16, 7.x, 6.x, 5.x, 2.x, 1.x ]
-                live:       [ master, 8.0, 7.17, 7.16, 7.x ]
+                branches:   [ {main: master}, 8.0, 7.17, 7.16, 7.x, 6.x, 5.x, 2.x, 1.x ]
+                live:       [ main, 8.0, 7.17, 7.16, 7.x ]
                 index:      docs/index.asciidoc
                 tags:       Clients/.Net
                 subject:    Clients