Update dependency @github/copilot to v1.0.74

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
@github/copilot	1.0.73 → 1.0.74

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Release Notes

github/copilot-cli (@​github/copilot)

v1.0.74

Compare Source

• Typing ? while the /search bar is open enters it as text instead of opening quick help
• Add support for Open Plugin Spec v1 plugin manifests and mcp.json configuration
• IDE integration reconnects reliably when the CLI reloads MCP servers or changes directory
• Multi-turn subagent timelines show every prompt and response in the correct order after reopening /tasks
• Subagent timelines identify whether prompts came from the main agent or another subagent
• Show a first-run splash to opt into the default sandbox
• Adding support for gemini-3.6-flash
• The /mcp add and /mcp edit wizard now preserves = characters in environment variable values (such as base64 padding), so secrets and tokens are stored correctly.
• Remote session uploads stop retrying permanent Mission Control 400/404 responses
• Show Tab in /settings footer to switch scope tabs
• Downscale oversized tool-result images so CAPI Responses requests continue
• When multiplexing sessions, a session's open dialog no longer leaks into another session; eligible pickers reopen when you switch back
• The $ interactive shell shortcut now opens a shell even while the agent is working
• Fully honor the skill disable-model-invocation flag
• Warn when a participating language server reports a different symbol than the one requested
• Steering interrupts shell output waits without stopping the running command
• Increase the Responses request size limit
• Plan mode now allows session-folder planning artifacts while still blocking clear file mutations outside the session folder.
• Add /model plan (or /model --plan) to pick a model used while in plan mode; pass a model id, off to clear, or no id to open the picker. Reverts to the session model when you leave plan mode.
• Resume search matches session titles even when whitespace differs

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