🧪 [testing improvement: Add tests for std.http capability denied error path]

[Tcode-Motion]

🎯 What: Tested the error path in std.http get method when the Network capability is denied.
📊 Coverage: The test covers the scenario where !ctx.config.capabilities.contains(&Capability::Network) is executed in the get method.
✨ Result: Increased test coverage for error conditions related to missing capabilities.

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PR created automatically by Jules for task 8240489410032386587 started by @Tcode-Motion

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