Update dtolnay/rust-toolchain digest to 4be7066

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
dtolnay/rust-toolchain (changelog)	action	digest	29eef33 → 4be7066

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 91.25%. Comparing base (122ed52) to head (f4a1fdb).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #44   +/-   ##
=======================================
  Coverage   91.25%   91.25%           
=======================================
  Files          12       12           
  Lines        2070     2070           
=======================================
  Hits         1889     1889           
  Misses        181      181           

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