docs: update temporary_security_group_source_cidrs and ssh_interface for IPv6 support

Author: AndreiOmelchenko

docs-partials/common/RunConfig-not-required.mdx

@@ -437,10 +437,10 @@
 
 - `tenancy` (string) - Deprecated: Use Placement Tenancy instead.
 
-- `temporary_security_group_source_cidrs` ([]string) - A list of IPv4 CIDR blocks to be authorized access to the instance, when
+- `temporary_security_group_source_cidrs` ([]string) - A list of IPv4/IPv6 CIDR blocks to be authorized access to the instance, when
   packer is creating a temporary security group.
 
-  The default is [`0.0.0.0/0`] (i.e., allow any IPv4 source).
+  The default is [`0.0.0.0/0`] (i.e., allow any IPv4 source) and if ssh_interface is set as "ipv6" the default is [`::/0`] (i.e., allow any IPv6 source).
   Use `temporary_security_group_source_public_ip` to allow current host's
   public IP instead of any IPv4 source.
   This is only used when `security_group_id` or `security_group_ids` is not
@@ -516,7 +516,7 @@
 
 - `metadata_options` (MetadataOptions) - [Metadata Settings](#metadata-settings)
 
-- `ssh_interface` (string) - One of `public_ip`, `private_ip`, `public_dns`, `private_dns` or `session_manager`.
+- `ssh_interface` (string) - One of `public_ip`, `private_ip`, `public_dns`, `private_dns`, `ipv6` or `session_manager`.
      If set, either the public IP address, private IP address, public DNS name
      or private DNS name will be used as the host for SSH. The default behaviour
      if inside a VPC is to use the public IP address if available, otherwise
@@ -528,6 +528,10 @@
      `<region>.compute.internal` included in the `NO_PROXY` environment
      variable.
 
+  	  When using `ipv6` the VPC and subnet must be configured to support IPv6.
+  	  The default VPC and subnets do not have ipv6 configured by default.
+  	  Refer: https://docs.aws.amazon.com/vpc/latest/userguide/vpc-migrate-ipv6-add.html
+  
      When using `session_manager` the machine running Packer must have
   	  the AWS Session Manager Plugin installed and within the users' system path.
      Connectivity via the `session_manager` interface establishes a secure tunnel