Update dependency static3 to v0.7.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
static3	==0.5.1 -> ==0.7.0

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Release Notes

rmohr/static3 (static3)

### [`v0.7.0`](https://togithub.com/rmohr/static3/releases/tag/v0.7.0) [Compare Source](https://togithub.com/rmohr/static3/compare/v0.6.2...v0.7.0) Add arbitrary header support, created by [@​bloodearnest](https://togithub.com/bloodearnest) in [#​5](https://togithub.com/rmohr/static3/issues/5). ### [`v0.6.2`](https://togithub.com/rmohr/static3/releases/tag/v0.6.2) [Compare Source](https://togithub.com/rmohr/static3/compare/v0.6.1...v0.6.2) Doing a HTTP HEAD request gave an internal server error on Python3. Fixed in [#​10](https://togithub.com/rmohr/static3/issues/10). ### [`v0.6.1`](https://togithub.com/rmohr/static3/releases/tag/v0.6.1) [Compare Source](https://togithub.com/rmohr/static3/compare/0.6.0...v0.6.1) Fixes [#​6](https://togithub.com/rmohr/static3/issues/6) which causes the installation of the package to fail if the LANG environment variable is not properly set. ### [`v0.6.0`](https://togithub.com/rmohr/static3/releases/tag/0.6.0) [Compare Source](https://togithub.com/rmohr/static3/compare/0.5.1...0.6.0) Add support for prezipped static content

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