perf: update htslib and corresponding bindings to 1.16

[johanneskoester]

No description provided.

[johanneskoester]

@pmarks could you help me here? I must admit that I have no idea anymore about the build process of hts-sys. As far as I remember, you redesigned it some time ago. In case something in the rust code needs to be adapted to API changes, let me know. But currently, the errors rather look like I am doing something wrong with the update of htslib and the bindings itself.

[johanneskoester]

Also, while I tried to manually generate the prebuilt bindings for linux, I cannot do that for osx, since I don't have an apple machine here.

[coveralls]

Pull Request Test Coverage Report for Build 3238557950

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 78.776%

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Totals
Change from base Build 3233164183:	0.0%
Covered Lines:	2253
Relevant Lines:	2860

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💛 - Coveralls

[pmarks]

@johanneskoester I think this is good to go.

[johanneskoester]

Awesome, thanks a lot!