Run rustls CI against IP cluster address

[clux]

This actually means that #153 is really, actually fixed. The fix comes through from an innocuous rustls+hyper-rustls bump in #1182, which will be available in 0.81.

Tested locally with a fresh k3d cluster at 1.25 with the default server: https://0.0.0.0:39555 (normally you would have to replace 0.0.0.0 with localhost to make it work).

Before

$ cargo run --example pod_watcher --no-default-features --features=rustls-tls,latest,runtime

    Finished dev [unoptimized + debuginfo] target(s) in 0.10s
     Running `/home/clux/kube/kube/target/debug/examples/pod_watcher`
2023-04-03T19:15:47.113789Z  WARN rustls::conn: Sending fatal alert BadCertificate
2023-04-03T19:15:47.113902Z ERROR kube_client::client::builder: failed with error error trying to connect: presented server name type wasn't supported
Error: failed to perform initial object list: HyperError: error trying to connect: presented server name type wasn't supported

Caused by:
    0: HyperError: error trying to connect: presented server name type wasn't supported
    1: error trying to connect: presented server name type wasn't supported
    2: presented server name type wasn't supported

After

$ cargo run --example pod_watcher --no-default-features --features=rustls-tls,latest,runtime
    Finished dev [unoptimized + debuginfo] target(s) in 0.10s
     Running `/home/clux/kube/kube/target/debug/examples/pod_watcher`
2023-04-03T19:16:25.836883Z  INFO pod_watcher: saw local-path-provisioner-79f67d76f8-gsnkz

[codecov]

Codecov Report

Merging #1183 (a43b8d0) into main (7e75fdc) will increase coverage by 0.01%.
The diff coverage is n/a.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1183      +/-   ##
==========================================
+ Coverage   73.46%   73.48%   +0.01%     
==========================================
  Files          68       68              
  Lines        5355     5355              
==========================================
+ Hits         3934     3935       +1     
+ Misses       1421     1420       -1     

see 1 file with indirect coverage changes