[release] Bump version to 1.25.7

[christian-byrne]

Release 1.25.7

This patch release includes backported fixes and features that improve stability and user experience.

🎯 Backported Changes Since v1.25.6

Subgraph Improvements

• Deep copy subgraphs to clipboard (Deep copy subgraphs to clipboard, update nested ids on paste #5003) - Properly handles nested IDs when pasting subgraphs
• Fix minimap subgraph navigation (Fix minimap subgraph navigation with UUID callback tracking #5018) - Improves navigation with graph UUID callback tracking
• Fix widget disconnection in subgraphs (Fix widget disconnection issue in subgraphs #4922 #5015) - Resolves issue [Bug]: Widgets sometimes break when disconnecting node inputs inside a subgraph #4922 where widgets were getting disconnected

Pricing & API

• Added GPT-5 series model pricing (api_nodes: added prices for gpt-5 series models #4958) - Updates api_nodes with pricing for new GPT-5 models

Internationalization

• Translated Keyboard Shortcuts (Translated Keyboard Shortcuts #5007) - Adds keyboard shortcut translations
• Traditional to Simplified Chinese fixes (fix: Correct traditional Chinese to simplified Chinese in translations #5005) - Corrects character translations in Chinese locale

Testing

• Release fetch skip tests (Use --disable-api-nodes release fetch skip functionality #4799) - Adds tests for --disable-api-nodes functionality

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