PORT-8929 | Update the lock and unlock service guide to use upsert entity and automations

[kodjomiles]

Description

• Updated the lock and unlock service guide to use create/update entity action and entity update automation trigger
• Removed github workflow implementation to simplify lock and unlock service
• Replaced old images with new implementation images

Updated docs pages

• Quickstart (/)
• Blueprint (/platform-overview/port-components/blueprint)
• https://docs.getport.io/actions-and-automations/setup-backend/github-workflow/examples/lock-and-unlock-service-in-port

[aws-amplify-eu-west-1[bot]]

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[kodjomiles]

Moved content to a new branch