chore: block @dependabot updates to @types/node@26

[zimeg]

Summary

This pull request caps @types/node for the Node Slack SDK so Dependabot won't bump it to v26.

• Extends the @types/node Dependabot ignore rules across all packages to also block 26.x (framework packages stay on the v18 line; examples on v24).

The Node 26 CI matrix addition was split out into #2635 so it can land independently.

Requirements

• I've read and understood the Contributing Guidelines and have done my best effort to follow them.
• I've read and agree to the Code of Conduct.

[changeset-bot]

⚠️ No Changeset found

Latest commit: 4652a74

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.90%. Comparing base (fefeb07) to head (4652a74).
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2634   +/-   ##
=======================================
  Coverage   88.90%   88.90%           
=======================================
  Files          63       63           
  Lines       10256    10256           
  Branches      452      452           
=======================================
  Hits         9118     9118           
  Misses       1117     1117           
  Partials       21       21           

Flag	Coverage Δ
cli-hooks	88.90% <ø> (ø)
cli-test	88.90% <ø> (ø)
logger	88.90% <ø> (ø)
oauth	88.90% <ø> (ø)
socket-mode	88.90% <ø> (ø)
web-api	88.90% <ø> (ø)
webhook	88.90% <ø> (ø)

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[zimeg]

🤓 A note on current changes but I think we can follow up with better documented updating paths!

[zimeg]

📝 note: Included examples don't use @types/node at the moment but we hope to capture our version patterns with this addition!

[zimeg]

@mwbrooks Let's celebrate ongoing stable versions with this merge 🎁 ✨