actions: add security audit workflow

[xtqqczze]

Action will be executed periodically at midnight of each day and check if any new advisories appear for crate dependencies.

For each new advisory (including informal) an issue will be created.

[Krysztal112233]

@sylvestre @cakebaker Could you please check if this is necessary?

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 19.19%. Comparing base (ee98c0a) to head (92275a0).
⚠️ Report is 5 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #673   +/-   ##
=======================================
  Coverage   19.19%   19.19%           
=======================================
  Files          68       68           
  Lines       10135    10135           
  Branches      545      545           
=======================================
  Hits         1945     1945           
  Misses       8190     8190           

Flag	Coverage Δ
macos_latest	6.74% <ø> (ø)
ubuntu_latest	19.54% <ø> (ø)
windows_latest	0.02% <ø> (ø)

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[xtqqczze]

We already use the action at uutils/coreutils and others.

[Bluemangoo]

downvote, renovate is enough.

[xtqqczze]

@renovate doesn't update everything, see #675