Enforcing Node version update in package.json

[Copilot]

Pull request created by AI Agent

[Copilot]

Pull request overview

This PR updates the monorepo’s declared minimum supported Node.js version to Node 22 across the workspace packages, aligning engines.node and related Node typings.

Changes:

• Bump engines.node from >=12 to >=22 in the root and multiple package package.json files.
• Update @types/node constraints from >=12.0.0 to >=22.0.0 in affected packages.
• Minor whitespace-only adjustments in committed dist/ artifacts for placeholder packages.

Reviewed changes

Copilot reviewed 9 out of 11 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
package.json	Raises root engines.node to >=22.
packages/examples/package.json	Raises examples package Node engine requirement to >=22.
packages/placeholder-pdfkit010/package.json	Raises Node engine requirement and Node typings floor to 22.
packages/placeholder-pdfkit010/dist/pdfkitAddPlaceholder.js	Whitespace-only change in generated dist output.
packages/placeholder-pdfkit/package.json	Raises Node engine requirement and Node typings floor to 22.
packages/placeholder-pdf-lib/package.json	Raises Node engine requirement and Node typings floor to 22.
packages/placeholder-pdf-lib/dist/pdflibAddPlaceholder.js	Whitespace-only change in generated dist output.
packages/placeholder-plain/package.json	Raises Node engine requirement and Node typings floor to 22.
packages/signpdf/package.json	Raises Node engine requirement and Node typings floor to 22.
packages/signer-p12/package.json	Raises Node engine requirement and Node typings floor to 22.
packages/utils/package.json	Raises Node engine requirement and Node typings floor to 22.

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