Use pnpm@9 #997

Job	Run time
Test (packages/ember-container-query)	25s
Build (docs-app)	45s
Test (test-app)	48s
Lint (docs-app)	34s
Test compatibility (ember-lts-4.4)	49s
Lint (packages/ember-container-query)	24s
Test compatibility (ember-lts-4.8)	50s
Lint (test-app)	25s
Test compatibility (ember-lts-4.12)	52s
Test compatibility (ember-lts-5.4)	50s
Test compatibility (ember-lts-5.8)	50s
Test compatibility (ember-release)	56s
Test compatibility (ember-beta)	51s
Test compatibility (ember-canary)	47s
Test compatibility (embroider-safe)	51s
Test compatibility (embroider-optimized)	1m 0s
Test (docs-app) (w1-h1)	55s
Test (docs-app) (w2-h1)	51s
Test (docs-app) (w3-h1)	56s
Test (docs-app) (w1-h2)	45s
Test (docs-app) (w2-h2)	1m 6s
Test (docs-app) (w3-h2)	51s
Test (docs-app) (w1-h3)	1m 0s
Test (docs-app) (w2-h3)	1m 4s
Test (docs-app) (w3-h3)	55s
	20m 20s

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