CI: Resolve Node.js Buffer() deprecation warning (DEP0005) in workflow runs

[MariusStorhaug]

Context

During PR review of #67, the following deprecation warning was detected in CI workflow logs across multiple jobs (Test-Module and Lint-Module on all three platforms):

(node:PID) [DEP0005] DeprecationWarning: Buffer() is deprecated due to security and usability issues.
Please use the Buffer.alloc(), Buffer.allocUnsafe(), or Buffer.from() methods instead.

This warning originates from the Node.js runtime used by GitHub Actions infrastructure — likely from a dependency of one of the reusable workflows or actions referenced by the Process-PSModule workflow.

Impact

Currently a warning only (no functional impact). However, Buffer() without new is a known security concern (potential uninitialized memory exposure) and may eventually become a hard error in future Node.js versions used by GitHub Actions runners.

Investigation needed

• Identify which specific action or tool triggers the Buffer() call (use node --trace-deprecation if possible)
• If the source is in a shared reusable workflow (e.g., Process-PSModule), the fix may need to be applied upstream
• If the source is a pinned action version, updating to a newer version may resolve it

[MariusStorhaug]

Moved to PSModule/Process-PSModule#331 — the deprecation originates from the shared workflow infrastructure, not NerdFonts-specific code.