Updated hyper-rustls to native-tls

[SivakaviKavitha]

To avoid the ring dependency updated hyper-rustls to native-tls

Fixes: #521

[dkhokhlov]

@SivakaviKavitha
I tried to build your PR with

make test

and got error:

error: failed to select a version for the requirement `native-tls = "^0.23"` (locked to 0.23.2)
candidate versions found which didn't match: 0.2.11, 0.2.10, 0.2.9, ...

Do you see the same?

[SivakaviKavitha]

Hi @dkhokhlov ,
yeah, i am also facing the same issue.

Could you please suggest us on how to proceed ?

[c-nixon]

Native-tls and rustls have different and incompatible APIs. Unfortunately if you want to add native-tls as an alternative TLS implementation it will need to be added behind a feature.

The logdna-rust api client library will also need to be updated to have an additional native-tls feature implementation.

The agent's other dependencies will also need their TLS implementations switched based on the native-tls/rustls feature, otherwise the build will still try to pull in rustls.

There may also be additional complications in the build-image if we want to build static binaries with native tls as we may need to provide a built copy of openssl.