chore(deps): update pnpm to v9 #4895

Job	Run time
Install	29s
Default Tests	1m 18s
Lint	56s
[email protected]	53s
[email protected]	56s
[email protected]	52s
Floating Deps Test	1m 12s
[email protected]	54s
Publish Docs to Cloudflare Pages	1m 32s
ember-lts-4.4	1m 3s
ember-lts-4.8	1m 9s
ember-release	1m 3s
ember-beta	56s
ember-canary	1m 4s
'ember-lts-4.8 + embroider-safe'	59s
'ember-lts-4.8 + embroider-optimized'	1m 6s
'ember-release + embroider-optimized'	1m 16s
Release	0s
	17m 38s

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