chore(charts/n8n): update n8nio/n8n docker tag to v1.56.0

This MR contains the following updates:

Package	Update	Change
n8nio/n8n (source)	minor	1.55.3 -> 1.56.0

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Release Notes

n8n-io/n8n (n8nio/n8n)

v1.56.0

Bug Fixes

• Better errors in Switch, If and Filter nodes (#​10457) (aea82cb)
• Calendly Trigger Node: Fix issue with webhook url matching (#​10378) (09c3a8b)
• core: Fix payload property in workflow-post-execute event (#​10413) (d98e29e)
• core: Fix XSS validation and separate URL validation (#​10424) (91467ab)
• core: Replace sanitize-html with xss in XSS validator constraint (#​10479) (5dea51a)
• core: Use class-validator with XSS check for survey answers (#​10490) (547a606)
• core: Use explicit types in configs to ensure valid decorator metadata (#​10433) (2043daa)
• editor: Add workflow scopes when initializing workflow (#​10455) (b857c2c)
• editor: Buffer json chunks in stream response (#​10439) (37797f3)
• editor: Fix flaky mapping tests (#​10453) (fc6d413)
• editor: Fix overflow in AI Assistant chat messages (#​10491) (4a6ca63)
• editor: Highlight matching type in filter component (#​10425) (6bca879)
• editor: Show item count in output panel schema view (#​10426) (4dee7cc)
• editor: Truncate long data pill labels in schema view (#​10427) (1bf2f4f)
• Filter component - improve errors (#​10456) (61ac0c7)
• Google Sheets Node: Better error when column to match on is empty (#​10442) (ce46bf5)
• Google Sheets Node: Update name and hint for useAppend option (#​10443) (c5a0c04)
• Google Sheets Node: Update to returnAllMatches option (#​10440) (f7fb02e)
• Invoice Ninja Node: Fix payment types (#​10462) (129245d)
• n8n Form Trigger Node: Show basic authentication modal on wrong credentials (#​10423) (0dc3e99)
• OpenAI Node: Throw node operations error in case of openAi client error (#​10448) (0d3ed46)
• Project Viewer always seeing a connection error when testing credentials (#​10417) (613cdd2)
• Remove unimplemented Postgres credentials options (#​10461) (17ac784)
• Rename Assistant back (#​10481) (c410aed)
• Require mfa code to change email (#​10354) (39c8e50)
• Respond to Webhook Node: Fix issue preventing the chat trigger from working (#​9886) (9d6ad88)
• Show input names when node has multiple inputs (#​10434) (973956c)
• Toggl Trigger Node: Update API version (#​10207) (9bdb1d6)

Features

• core: Support bidirectional communication between specific mains and specific workers (#​10377) (d0fc9de)
• Facebook Graph API Node: Update node to support API v18 - v20 (#​10419) (e7ee10f)

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