use warnings;
use strict;
use Data::Dumper;

local $/ = ""; # "paragraph mode"

my %records;
while (<DATA>) {
	chomp;
	my @rows = split /\n/;   # break apart lines
	my $key = shift @rows;   # first line is hash key
	$records{$key} = \@rows; # store reference to array in hash
}

print Dumper(\%records);

__DATA__
arn:aws:iam::11111111111:role/ADFS-MyRoleName
"Alexa for Business"
"AWS Certificate Manager"
"AWS Certificate Manager Private Certificate Authority"
"AWS Amplify"
"Manage - Amazon API Gateway"
"AWS App Mesh"
"Amazon AppStream 2.0"
"AWS AppSync"
"Amazon Athena"
"AWS Auto Scaling"

arn:aws:iam::12345678901:role/Role2-Role2
"Alexa for Business"
"AWS Certificate Manager"
"AWS Certificate Manager Private Certificate Authority"
"AWS Amplify"
"Manage - Amazon API Gateway"
"Application Auto Scaling"
"AWS App Mesh"
"Amazon AppStream 2.0"
"AWS AppSync"

##</code><code>##

$VAR1 = {
	'arn:aws:iam::11111111111:role/ADFS-MyRoleName' => [
		'"Alexa for Business"',
		'"AWS Certificate Manager"',
		'"AWS Certificate Manager Private Certificate Authority"',
		'"AWS Amplify"',
		'"Manage - Amazon API Gateway"',
		'"AWS App Mesh"',
		'"Amazon AppStream 2.0"',
		'"AWS AppSync"',
		'"Amazon Athena"',
		'"AWS Auto Scaling"'
	],
	'arn:aws:iam::12345678901:role/Role2-Role2' => [
		'"Alexa for Business"',
		'"AWS Certificate Manager"',
		'"AWS Certificate Manager Private Certificate Authority"',
		'"AWS Amplify"',
		'"Manage - Amazon API Gateway"',
		'"Application Auto Scaling"',
		'"AWS App Mesh"',
		'"Amazon AppStream 2.0"',
		'"AWS AppSync"'
	]
};