chore(charts/n8n): update n8nio/n8n docker tag to v1.70.0

This MR contains the following updates:

Package	Update	Change
n8nio/n8n (source)	minor	1.69.2 -> 1.70.0

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Release Notes

n8n-io/n8n (n8nio/n8n)

v1.70.0

Bug Fixes

• AI Agent Node: Add binary message before scratchpad to prevent tool calling loops (#​11845) (5c80cb5)
• CodeNodeEditor walk cannot read properties of null (#​11129) (d99e0a7)
• core: Bring back execution data on the executionFinished push message (#​11821) (0313570)
• core: Correct invalid WS status code on removing connection (#​11901) (1d80225)
• core: Don't use unbound context methods in code sandboxes (#​11914) (f6c0d04)
• core: Fix broken execution query when using projectId (#​11852) (a061dbc)
• core: Fix validation of items returned in the task runner (#​11897) (a535e88)
• editor: Add missing trigger waiting tooltip on new canvas (#​11918) (a8df221)
• editor: Don't re-render input panel after node finishes executing (#​11813) (b3a99a2)
• editor: Fix AI assistant loading message layout (#​11819) (89b4807)
• editor: Fix new canvas discovery tooltip position after adding github stars button (#​11898) (f4ab5c7)
• editor: Fix node position not getting set when dragging selection on new canvas (#​11871) (595de81)
• editor: Restore workers view (#​11876) (3aa72f6)
• editor: Turn NPS survey into a modal and make sure it shows above the Ask AI button (#​11814) (ca169f3)
• editor: Use crypto.randomUUID() to initialize node id if missing on new canvas (#​11873) (bc4857a)
• n8n Form Node: Duplicate popup in manual mode (#​11925) (2c34bf4)
• n8n Form Node: Redirect if completion page to trigger (#​11822) (1a8fb7b)
• OpenAI Node: Remove preview chatInput parameter for Assistant:Messsage operation (#​11825) (4dde287)
• Retain execution data between partial executions (new flow) (#​11828) (3320436)

Features

• Add SharePoint credentials (#​11570) (05c6109)
• Add Zabbix credential only node (#​11489) (fbd1ecf)
• AI Transform Node: Support for drag and drop (#​11276) (2c252b0)
• editor: Drop response wrapper requirement from Subworkflow Tool output (#​11785) (cd3598a)
• editor: Improve node and edge bring-to-front mechanism on new canvas (#​11793) (b89ca9d)
• editor: Make new canvas connections go underneath node when looping backwards (#​11833) (91d1bd8)
• editor: Make the left sidebar in Expressions editor draggable (#​11838) (a713b3e)
• editor: Migrate existing users to new canvas and set new canvas as default (#​11896) (caa7447)
• Slack Node: Update wait for approval to use markdown (#​11754) (40dd02f)

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