[FEATURE] pdcp template sync support

[ehsandeep]

Describe your feature request

Similar to other custom template download support, we can add support to sync templates from the ProjectDiscovery Cloud Platform for custom templates created via the Nuclei Template Editor or GitHub integration.

It can be optional feature that will work when PDCP_API_KEY env or auth is configured and can be disabled when -duc or below env is configured.

# Disable template download from pdcp
export DISABLE_PDCP_TEMPLATES_DOWNLOAD=true

Describe the use case of the feature

I'm looking to run my custom Nuclei templates stored in the Cloud Platform using local Nuclei on remote, VPS, and CI environments.

Describe alternatives you've considered

No response

Additional context

No response