Pnpm maintainence

[NullVoxPopuli]

Local dev with ember-velcro inherently causes unrelated changes without a few tweaks here

• use volta
• update ci to use volta-aware and pnpm-cache-aware action
• reduceLock

[changeset-bot]

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Latest commit: b8e0e2d

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[NullVoxPopuli]

Demo in my fork: https://github.com/NullVoxPopuli/ember-velcro/actions/runs/5927151629/job/16070051303
(failures are from the work in here: #124 )

I need to fix that on #124