deps(compose): Update docker.io/n8nio/n8n Docker tag to v2.33.7

[renovate]

This PR contains the following updates:

Package	Update	Change	Pending
docker.io/n8nio/n8n (source)	patch	2.33.3 → 2.33.7	2.34.4 (+4)

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Release Notes

n8n-io/n8n (docker.io/n8nio/n8n)

v2.33.7

Bug Fixes

• core: Fix task runner health check failing (#​35817) (e271104)
• core: Handle out-of-scope display option dependencies (#​35864) (0e83399)
• editor: Make DropdownMenus more obviously scrollable (#​35743) (8b3b850)

v2.33.6

Bug Fixes

• Send n8n version on backend posthog flag retrieval (#​35720) (b422237)

v2.33.5

Bug Fixes

• editor: Focus Markdown editor input before toolbar (#​35606) (388e313)

v2.33.4

Bug Fixes

• core: Improve task broker resilience when a runner dies (#​35364) (fa797ca)
• core: Recover unresponsive task runners (#​35528) (05b5a42)
• Fixes see all button tracking on aia template examples (#​35464) (bb4ec76)
• Skip redundant workflow edit approval in AI Assistant (#​35433) (53f00b5)

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