Bump minimal versions of anyhow, thiserror and serde

[msrd0]

We actually require anyhow 1.0.5 and upwards to allow anyhow::Error to be used with hyper, and thiserror 1.0.2 to use the #[from] attribute. I also bumped serde to the oldest version after switching back to from-source compilation.

[codecov]

Codecov Report

Merging #623 (03f279c) into main (3d11152) will not change coverage.
The diff coverage is n/a.

❗ Current head 03f279c differs from pull request most recent head 3c70bf9. Consider uploading reports for the commit 3c70bf9 to get more accurate results

@@           Coverage Diff           @@
##             main     #623   +/-   ##
=======================================
  Coverage   78.34%   78.34%           
=======================================
  Files          72       72           
  Lines        2050     2050           
=======================================
  Hits         1606     1606           
  Misses        444      444           

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[msrd0]

For some reason, when using -Z minimal-versions the diesel example's test fails. But at least everything compiles, so this is still an improvement