chore: test that bootstrap code applies side-effect first

[Skn0tt]

https://github.com/netlify/serverless-functions-api/pull/231 adds a side-effect that needs to be executed before user code. That's already the case today, but to ensure it stays that way, this PR adds a test for that.

[github-actions]

⏱ Benchmark results

Comparing with 4585b25

largeDepsEsbuild: 1.3s

⬇️ 0.78% decrease vs. 4585b25

^                   1.3s                                                            1.3s                  
│   1.3s    1.3s    ┌──┐    1.3s    1.2s    1.3s            1.3s    1.2s    1.3s    ┌──┐    1.3s    1.3s  
│ ──┌──┐────┌──┐────┼──┼────┌──┐────┌──┐────┌──┐────1.2s────┌──┐────┌──┐────┌──┐────┼──┼────┌──┐────┌──┐──
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└───┴──┴────┴──┴────┴──┴────┴──┴────┴──┴────┴──┴────┴──┴────┴──┴────┴──┴────┴──┴────┴──┴────┴──┴────┴──┴──>
    T-12    T-11    T-10    T-9     T-8     T-7     T-6     T-5     T-4     T-3     T-2     T-1      T    

Legend

• T-30 (06f408e): 1.3s
• T-29 (8591222): 1.2s
• T-28 (95285a7): 1.3s
• T-27 (1aefa6e): 1.3s
• T-26 (7c7ce09): 1.3s
• T-25 (9e71c5b): 1.3s
• T-24 (5b4140b): 1.3s
• T-23 (becb2ac): 1.3s
• T-22 (a2071a6): 1.3s
• T-21 (66b668b): 1.3s
• T-20 (a789be6): 1.2s
• T-19 (f8b965c): 1.3s
• T-18 (849af1d): 1.3s
• T-17 (77eb437): 1.3s
• T-16 (b5e8220): 1.3s
• T-15 (c1aca86): 1.3s
• T-14 (f592933): 1.3s
• T-13 (3e76510): 1.3s
• T-12 (a4a7647): 1.3s
• T-11 (878dc94): 1.3s
• T-10 (b673da7): 1.3s
• T-9 (53f8dda): 1.3s
• T-8 (c5f1222): 1.2s
• T-7 (f5a4d27): 1.3s
• T-6 (61612d7): 1.2s
• T-5 (01f1c33): 1.3s
• T-4 (7b03070): 1.2s
• T-3 (ceefcf8): 1.3s
• T-2 (1ab3f5d): 1.3s
• T-1 (4585b25): 1.3s
• T (current commit): 1.3s

largeDepsNft: 5s

⬇️ 2.80% decrease vs. 4585b25

^   5.5s            5.4s                                                                                  
│   ┌──┐    5.2s    ┌──┐    5.2s            5.2s    5.1s    5.2s                    5.3s    5.1s          
│ ──┼──┼────┌──┐────┼──┼────┌──┐─────5s─────┌──┐────┌──┐────┌──┐─────5s──────5s─────┌──┐────┌──┐─────5s───
│   |  |    |  |    |  |    |  |    ┌──┐    |  |    |  |    |  |    ┌──┐    ┌──┐    |  |    |  |    ┌──┐  
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└───┴──┴────┴──┴────┴──┴────┴──┴────┴──┴────┴──┴────┴──┴────┴──┴────┴──┴────┴──┴────┴──┴────┴──┴────┴──┴──>
    T-12    T-11    T-10    T-9     T-8     T-7     T-6     T-5     T-4     T-3     T-2     T-1      T    

Legend

• T-30 (06f408e): 5.3s
• T-29 (8591222): 5.5s
• T-28 (95285a7): 5.5s
• T-27 (1aefa6e): 5.7s
• T-26 (7c7ce09): 5.2s
• T-25 (9e71c5b): 5.3s
• T-24 (5b4140b): 5.3s
• T-23 (becb2ac): 5.5s
• T-22 (a2071a6): 5.6s
• T-21 (66b668b): 5.3s
• T-20 (a789be6): 5.4s
• T-19 (f8b965c): 5.5s
• T-18 (849af1d): 5.5s
• T-17 (77eb437): 5.3s
• T-16 (b5e8220): 5.5s
• T-15 (c1aca86): 5.4s
• T-14 (f592933): 5.3s
• T-13 (3e76510): 5.3s
• T-12 (a4a7647): 5.5s
• T-11 (878dc94): 5.2s
• T-10 (b673da7): 5.4s
• T-9 (53f8dda): 5.2s
• T-8 (c5f1222): 5s
• T-7 (f5a4d27): 5.2s
• T-6 (61612d7): 5.1s
• T-5 (01f1c33): 5.2s
• T-4 (7b03070): 5s
• T-3 (ceefcf8): 5s
• T-2 (1ab3f5d): 5.3s
• T-1 (4585b25): 5.1s
• T (current commit): 5s

largeDepsZisi: 9.3s

⬇️ 2.12% decrease vs. 4585b25

^   10s     9.9s   10.1s                                                            9.8s                  
│   ┌──┐    ┌──┐    ┌──┐    9.5s    9.8s    9.8s    9.7s    9.7s            9.5s    ┌──┐    9.5s    9.3s  
│ ──┼──┼────┼──┼────┼──┼────┌──┐────┌──┐────┌──┐────┌──┐────┌──┐────9.2s────┌──┐────┼──┼────┌──┐────┌──┐──
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│   |  |    |  |    |  |    |  |    |  |    |  |    |  |    |  |    |  |    |  |    |  |    |  |    |▒▒|  
└───┴──┴────┴──┴────┴──┴────┴──┴────┴──┴────┴──┴────┴──┴────┴──┴────┴──┴────┴──┴────┴──┴────┴──┴────┴──┴──>
    T-12    T-11    T-10    T-9     T-8     T-7     T-6     T-5     T-4     T-3     T-2     T-1      T    

Legend

• T-30 (06f408e): 10s
• T-29 (8591222): 10.3s
• T-28 (95285a7): 10.4s
• T-27 (1aefa6e): 10.5s
• T-26 (7c7ce09): 10.2s
• T-25 (9e71c5b): 10s
• T-24 (5b4140b): 10s
• T-23 (becb2ac): 10.3s
• T-22 (a2071a6): 10.4s
• T-21 (66b668b): 10.2s
• T-20 (a789be6): 10.2s
• T-19 (f8b965c): 10.2s
• T-18 (849af1d): 10.2s
• T-17 (77eb437): 10s
• T-16 (b5e8220): 10.3s
• T-15 (c1aca86): 10.2s
• T-14 (f592933): 10.2s
• T-13 (3e76510): 10.2s
• T-12 (a4a7647): 10s
• T-11 (878dc94): 9.9s
• T-10 (b673da7): 10.1s
• T-9 (53f8dda): 9.5s
• T-8 (c5f1222): 9.8s
• T-7 (f5a4d27): 9.8s
• T-6 (61612d7): 9.7s
• T-5 (01f1c33): 9.7s
• T-4 (7b03070): 9.2s
• T-3 (ceefcf8): 9.5s
• T-2 (1ab3f5d): 9.8s
• T-1 (4585b25): 9.5s
• T (current commit): 9.3s