build(deps): bump the docker group across 2 directories with 4 updates

[dependabot]

Bumps the docker group with 3 updates in the / directory: golang, debian and alpine.
Bumps the docker group with 1 update in the /sandbox directory: python.

Updates golang from 1.26-alpine to 1.26.4-alpine

Updates debian from 0104b33 to 96e378d

Updates alpine from 3.20 to 3.24.1

Updates python from 3.11-slim to 3.11.15-slim

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[github-actions]

🐼 Smoke eval — 4fc0598: ✅ 6/6 pass

📊 Interactive report — tokens p50 14,712 · tokens/solve 14,762.

Reference points: v0.33.0 100% · master@e56f413 100%.

question	result	tokens	tools
forky_node_coverage	✅	14,514	8
tracoor_node_coverage	✅	13,812	7
mainnet_block_arrival_p50	✅	14,911	8
list_datasources	✅	11,525	2
block_count_24h	✅	18,029	13
missed_slots_24h	✅	15,780	9

🔭 Langfuse traces (6 runs; ⚠️ = failed)

• forky_node_coverage
• tracoor_node_coverage
• mainnet_block_arrival_p50
• list_datasources
• block_count_24h
• missed_slots_24h

_{The report walks this branch's commits against the master baseline and the most recent release. A self-contained copy is in the run's eval-smoke-* artifact.}