Switch to using the pki-types crate

[djc]

See rustls/pki-types#1 for details.

Depends on:

• Start collection of basic data types pki-types#1
• Switch to using the pki-types crate webpki#147
• Switch to using the pki-types crate webpki-roots#45

[codecov]

Codecov Report

Merging #1432 (f6ea8f1) into main (95780ab) will increase coverage by 0.01%.
The diff coverage is 95.27%.

@@            Coverage Diff             @@
##             main    #1432      +/-   ##
==========================================
+ Coverage   96.49%   96.50%   +0.01%     
==========================================
  Files          71       71              
  Lines       15160    15148      -12     
==========================================
- Hits        14628    14619       -9     
+ Misses        532      529       -3     

Files Changed	Coverage Δ
rustls/src/builder.rs	98.95% <ø> (ø)
rustls/src/verify.rs	63.63% <0.00%> (ø)
rustls/src/client/builder.rs	88.23% <50.00%> (ø)
rustls/src/webpki/mod.rs	71.42% <71.42%> (ø)
rustls/src/sign.rs	97.02% <98.85%> (-0.24%)	⬇️
rustls/src/client/handy.rs	98.80% <100.00%> (ø)
rustls/src/client/tls12.rs	97.96% <100.00%> (ø)
rustls/src/common_state.rs	95.38% <100.00%> (ø)
rustls/src/msgs/base.rs	90.00% <100.00%> (ø)
rustls/src/msgs/handshake.rs	98.12% <100.00%> (ø)
... and 11 more

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[djc]

The CI benchmark failure looks like noise.

[djc]

Going to merge this since @cpu is off today -- happy to address any post-merge feedback!

[cpu]

👍 Thanks djc!