bump golang to version 1.21.4

[glours]

What I did
Bump Golang to v1.21.4

go1.21.4 (released 2023-11-07) includes security fixes to the path/filepath package, as well as bug fixes to the linker, the runtime, the compiler, and the go/types, net/http, and runtime/cgo packages. See the Go 1.21.4 milestone on our issue tracker for details.

Related issue

(not mandatory) A picture of a cute animal, if possible in relation to what you did

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (2945532) 56.94% compared to head (06779f0) 56.93%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #11173      +/-   ##
==========================================
- Coverage   56.94%   56.93%   -0.02%     
==========================================
  Files         133      133              
  Lines       11370    11370              
==========================================
- Hits         6475     6473       -2     
- Misses       4270     4271       +1     
- Partials      625      626       +1     

see 1 file with indirect coverage changes

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