[Task]: Modify Playground examples parser to collect complexity of examples, modify endpoints to provide complexity info

[VladMatyunin]

What needs to happen?

Depends on:

• [Task]: Add complexity parameter to Playground examples #22341
• [Task]: Develop complexity indicator for examples on Playground frontend application #22339

Requirements:

• Modify 'Deploy Examples' scripts to parse new field 'complexity' from meta-info place
• Modify endpoints GetPrecompiledObjects, GetPrecompiledObject to include new field 'complexity'
• Add new property 'complexity' to proto files
• Add new migration to describe adding new field 'complexity'
• Unit tests for 'complexity' field

Issue Priority

Priority: 3

Issue Component

Component: beam-playground

[vchunikhin]

.take-issue