Add index.query.max_nested_depth fix #6346 (#6347)

* Document index.query.max_nested_depth fix #6346

Signed-off-by: Mikhail Khludnev <mkhludnev@users.noreply.github.com>

* fix index.query.max_nested_depth

Co-authored-by: kolchfa-aws <105444904+kolchfa-aws@users.noreply.github.com>
Signed-off-by: Mikhail Khludnev <mkhludnev@users.noreply.github.com>

* Update _install-and-configure/configuring-opensearch/index-settings.md

Co-authored-by: Andriy Redko <drreta@gmail.com>
Signed-off-by: Mikhail Khludnev <mkhludnev@users.noreply.github.com>

* Update index-settings.md

Signed-off-by: Mikhail Khludnev <mkhludnev@users.noreply.github.com>

* Update index-settings.md

Signed-off-by: Mikhail Khludnev <mkhludnev@users.noreply.github.com>

---------

Signed-off-by: Mikhail Khludnev <mkhludnev@users.noreply.github.com>
Co-authored-by: kolchfa-aws <105444904+kolchfa-aws@users.noreply.github.com>
Co-authored-by: Andriy Redko <drreta@gmail.com>

_install-and-configure/configuring-opensearch/index-settings.md

@@ -172,6 +172,8 @@ OpenSearch supports the following dynamic index-level index settings:
 
 - `index.query.default_field` (List): A field or list of fields that OpenSearch uses in queries in case a field isn't specified in the parameters.
 
+- `index.query.max_nested_depth` (Integer): The maximum number of nesting levels for `nested` queries. Default is `Integer.MAX_VALUE`. Minimum is 1 (single `nested` query).
+
 - `index.routing.allocation.enable` (String): Specifies options for the index’s shard allocation. Available options are `all` (allow allocation for all shards), `primaries` (allow allocation only for primary shards), `new_primaries` (allow allocation only for new primary shards), and `none` (do not allow allocation). Default is `all`.
 
 - `index.routing.rebalance.enable` (String): Enables shard rebalancing for the index. Available options are `all` (allow rebalancing for all shards), `primaries` (allow rebalancing only for primary shards), `replicas` (allow rebalancing only for replicas), and `none` (do not allow rebalancing). Default is `all`.