chore(deps): update pnpm to v10.20.0 #4043

Job	Run time
Lint Addon	28s
Lint Test App	25s
Tests (Floating Dependencies)	57s
ember-canary - Allowed to fail	1m 14s
ember-beta - Allowed to fail	1m 6s
Tests (ember-4.0, false)	1m 5s
Tests (ember-4.12, false)	1m 2s
Tests (ember-lts-4.8, false)	2m 2s
embroider-optimized - Allowed to fail	1m 11s
Tests (ember-default, false)	1m 3s
Tests (ember-lts-4.4, false)	1m 10s
Tests (embroider-safe, false)	1m 16s
Tests (ember-lts-5.8, false)	1m 2s
Tests (ember-release, false)	1m 11s
	15m 12s

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