chore: increases the minimum go version

[jcchavezs]

Thank you for contributing to Coraza WAF, your effort is greatly appreciated
Before submitting check if what you want to add to coraza list meets quality standards before sending pull request. Thanks!

Make sure that you've checked the boxes below before you submit PR:

• My code includes positive and negative tests.
• I have an appropriate description with correct grammar.
• I have read Contribution guidelines, maintainers note and Quality standard.
• My code is properly linted and passes pre-commit tests.

Thanks for your contribution ❤️

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.27%. Comparing base (93b606a) to head (7274193).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1462   +/-   ##
=======================================
  Coverage   85.27%   85.27%           
=======================================
  Files         173      173           
  Lines        8400     8400           
=======================================
  Hits         7163     7163           
  Misses        991      991           
  Partials      246      246           

Flag	Coverage Δ
coraza.rule.case_sensitive_args_keys	85.23% <ø> (ø)
coraza.rule.mandatory_rule_id_check	85.26% <ø> (ø)
coraza.rule.multiphase_evaluation	84.98% <ø> (ø)
coraza.rule.no_regex_multiline	85.26% <ø> (ø)
default	85.27% <ø> (ø)
examples+	16.51% <ø> (ø)
examples+coraza.rule.case_sensitive_args_keys	85.16% <ø> (ø)
examples+coraza.rule.mandatory_rule_id_check	85.26% <ø> (ø)
examples+coraza.rule.multiphase_evaluation	84.78% <ø> (ø)
examples+coraza.rule.no_regex_multiline	85.10% <ø> (ø)
examples+memoize_builders	85.21% <ø> (ø)
examples+no_fs_access	82.84% <ø> (ø)
ftw	85.27% <ø> (ø)
memoize_builders	85.39% <ø> (ø)
no_fs_access	84.79% <ø> (ø)
tinygo	85.24% <ø> (ø)

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