Utilize 1.22 for benchmark tests.

[fr33r]

Description

These changes update the Go version from 1.18 to 1.22 in our continuous benchmarking suite.

Rationale

We dropped support for 1.18 in v4, and generally assessing the packages performance against the latest version provides a more accurate depiction of what to expect, especially since the Go community usually only supports two major versions simultaneously.

Suggested Version

N/A

Example Usage

N/A

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.72%. Comparing base (06b6d24) to head (17e2918).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #128   +/-   ##
=======================================
  Coverage   98.72%   98.72%           
=======================================
  Files          14       14           
  Lines        1407     1407           
=======================================
  Hits         1389     1389           
  Misses         14       14           
  Partials        4        4           

Flag	Coverage Δ
v3	98.71% <ø> (ø)
v4	98.72% <ø> (ø)

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