Use go 1.23.3

[github-actions[bot]]

Benchmark diff:

goos: linux
goarch: amd64
pkg: github.com/cloudflare/pint/cmd/pint
cpu: AMD EPYC 7763 64-Core Processor                
              │   old.txt   │              new.txt               │
              │   sec/op    │   sec/op     vs base               │
FindEntries-4   40.75m ± 5%   39.68m ± 6%  -2.64% (p=0.035 n=10)
CheckRules-4     8.496 ± 2%    8.520 ± 2%       ~ (p=0.436 n=10)
geomean         588.4m        581.4m       -1.19%

              │   old.txt    │               new.txt               │
              │     B/op     │     B/op      vs base               │
FindEntries-4   27.41Mi ± 0%   27.41Mi ± 0%       ~ (p=0.579 n=10)
CheckRules-4    974.7Mi ± 0%   973.5Mi ± 0%       ~ (p=0.393 n=10)
geomean         163.4Mi        163.3Mi       -0.06%

              │   old.txt   │              new.txt               │
              │  allocs/op  │  allocs/op   vs base               │
FindEntries-4   131.9k ± 0%   131.9k ± 0%       ~ (p=0.951 n=10)
CheckRules-4    14.14M ± 0%   14.13M ± 0%       ~ (p=0.481 n=10)
geomean         1.365M        1.365M       -0.02%

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 94.99%. Comparing base (2d7c30d) to head (f3fe2bd).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1185 +/- ## ======================================= Coverage 94.99% 94.99% ======================================= Files 104 104 Lines 12561 12561 ======================================= Hits 11932 11932 Misses 480 480 Partials 149 149 ```

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