Setup cargo-deny

[Porges]

Using cargo-deny to ensure that disallowed dependencies removed in #2423 do not accidentally make their way back in.

cargo-deny subsumes the cargo-audit functionality, so switch to the cargo-deny version.

Setting this up required explicitly stating the license which was not in some of our Cargo.toml files.

[codecov-commenter]

Codecov Report

Merging #2638 (bb410e1) into main (894dcc6) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #2638   +/-   ##
=======================================
  Coverage   29.36%   29.36%           
=======================================
  Files         290      290           
  Lines       35606    35606           
=======================================
  Hits        10457    10457           
  Misses      25149    25149           

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.