fix: add missing netlify graph tokens in env

[anmonteiro]

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Summary

In #4235 we added this polling in functions server and stopped injecting variables in the main dev command, but frameworks like e.g. Next.js don't serve through the functions server.

Fix is to inject the netlify graph variables before any server starts so that they inherit the environment.

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[github-actions]

📊 Benchmark results

Comparing with 4e1ca42

Package size: 442 MB

(no change)

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Legend

• T-30 (4e1ca42): 442 MB
• T-29 (6212d30): 442 MB
• T-28 (d961855): 442 MB
• T-27 (fa3980d): 442 MB
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• T-23 (b74c0ee): 442 MB
• T-22 (d1577f6): 442 MB
• T-21 (1fb1f34): 442 MB
• T-20 (05a0e92): 510 MB
• T-19 (bd52b3e): 510 MB
• T-18 (96446a9): 510 MB
• T-17 (f5bd8f2): 509 MB
• T-16 (3279dc3): 439 MB
• T-15 (0b2d2c9): 439 MB
• T-14 (9773787): 439 MB
• T-13 (7b6b94a): 439 MB
• T-12 (eed5a47): 439 MB
• T-11 (5728f74): 439 MB
• T-10 (42b4b23): 439 MB
• T-9 (1f9ee87): 439 MB
• T-8 (9c71bf9): 439 MB
• T-7 (3ecfea6): 439 MB
• T-6 (5900487): 439 MB
• T-5 (a7bf9ad): 439 MB
• T-4 (82e60e4): 439 MB
• T-3 (aa470b5): 439 MB
• T-2 (49add26): 439 MB
• T-1 (9e6aa13): 438 MB
• T (current commit): 442 MB

[erezrokah]

Released in https://github.com/netlify/cli/releases/tag/v9.6.1