fix: timeout error

[paihu]

The default timeout of 3 seconds for the Lambda function is too short. I propose we change it to 15 minutes.

[nabe1653]

I faced timeout error too in some of my environments ... those enviroment uses same stacks and region but only some envs failed due to timeout error.
I tried to run sometimes and try with --method=prepare-change-set option but not resolved ... so I changed npm_package js code as same as this MR:

            handler: 'remote-outputs.on_event',
+           timeout: aws_cdk_lib_1.Duration.minutes(3),
/*  ... */
            handler: 'remote-parameters.on_event',
+           timeout: aws_cdk_lib_1.Duration.minutes(3),
        });      

I feel 15min is too long but this worked. (I checked lambda log after success, it takes 3.19sec for the env)
I wish merge this or add some args/env-value to choose Duration.

[tochny]

Facing the same timeout error too but I think 1 to 3 mins would be enough

[pahud]

Not sure if we should expose that to the construct props but let's make it 3min timeout for now.

[pahud]

close in favor of #604