Update dependency micro to v9.3.4

[renovate]

This PR contains the following updates:

Package	Type	Update	Change	References
micro	dependencies	patch	9.3.3 -> 9.3.4	source

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Release Notes

zeit/micro

v9.3.4

Compare Source

Patches

• Chore(examples/with-https): using destructuring: 62c1e01
• Convert getURL fn to more ergonomic one liner: 85d7bd6
• Decrease install size: #​396

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[coveralls]

Coverage remained the same at 42.353% when pulling 4eefdf4 on renovate/micro-9.x into dc19bb6 on master.