added restic plugin

[nklmilojevic]

Overview

Add a new shell plugin for restic, a fast, secure, and efficient backup program. This
plugin supports multiple storage backends by provisioning the appropriate environment variables for
authentication.

Supported backends:

• AWS S3 / Cloudflare R2 / MinIO (AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, AWS_SESSION_TOKEN)
• Azure Blob Storage (AZURE_ACCOUNT_NAME, AZURE_ACCOUNT_KEY, AZURE_ACCOUNT_SAS)
• Backblaze B2 (B2_ACCOUNT_ID, B2_ACCOUNT_KEY)
• Google Cloud Storage (GOOGLE_PROJECT_ID, GOOGLE_APPLICATION_CREDENTIALS)
• REST Server (RESTIC_REST_USERNAME, RESTIC_REST_PASSWORD)
• Core (RESTIC_PASSWORD - required for all backends)

Type of change

• Created a new plugin
• Improved an existing plugin
• Fixed a bug in an existing plugin
• Improved contributor utilities or experience

Related Issue(s)

• Resolves: #
• Relates: #

How To Test

# With S3-compatible backend (AWS, Cloudflare R2, MinIO)
restic -r s3:https://s3.amazonaws.com/bucket-name snapshots

# With Backblaze B2
restic -r b2:bucket-name snapshots

# With Azure Blob Storage
restic -r azure:container-name:/ snapshots

# With REST server
restic -r rest:https://user:pass@host:8000/ snapshots

Changelog

Authenticate the restic backup CLI using credentials stored in 1Password, with support for AWS S3, Azure Blob
Storage, Backblaze B2, Google Cloud Storage, and REST server backends.