feat(registry): Add pgEdge provider package

[KnockOutEZ]

Description

This PR adds the pgEdge provider package to the Pulumi Registry. The pgEdge provider enables management of pgEdge Cloud resources, supporting both Developer and Enterprise editions. This provider allows users to manage databases, clusters, backup stores, and cloud accounts through Pulumi infrastructure as code.

Adding a new package?

If this pull request adds a new package:

• The package's schema URL in this PR is correct (provider/cmd/pulumi-resource-pgedge/schema.json).
• The package metadata file contains:
  • a supported category (Database).
  • a valid plugin download URL (via GitHub repo: https://github.com/pgedge/pulumi-pgedge).
  • a description ("A Pulumi package for creating and managing pgEdge Cloud resources.").
  • a valid logo URL (https://pgedge-public-assets.s3.amazonaws.com/product/images/pgedge_mark.svg).
• The package repo contains an Overview doc (/docs/_index.md) that includes:
  • a brief explanation of the pgEdge provider and its capabilities.
  • representative examples in TypeScript and Go.
  • front-matter layout property set to package.
• The package repo contains an Installation and Configuration doc (/docs/installation-configuration.md) that includes:
  • links to Node.js and Go SDKs.
  • installation commands for npm/yarn and go get.
  • configuration examples using environment variables (PGEDGE_CLIENT_ID and PGEDGE_CLIENT_SECRET).
• The repository has:
  • version tag v0.0.28 with corresponding GitHub release
• A CODEOWNER has reviewed the PR.
• A member of the @pulumi/docs team has reviewed all documentation.

Additional Notes:

• Package is currently in public preview status
• Supports both Developer and Enterprise editions with different feature sets
• Includes comprehensive support for database, cluster, and backup management
• Provides multi-region deployment capabilities