fix: supporting go version 1.21 and higher

[kehiy]

Description

Related issue(s)

If this Pull Request is related to an issue, mention it here.

• Fixes supporting v1.21.0 #637

[b00f]

@kehiy fix the errors

[kehiy]

@b00f all of them is done
there is just some small issue in network test

[b00f]

It says:

"github.com/libp2p/go-libp2p/p2p/host/resource-manager/obs" is deprecated: obs is deprecated and the exported types and methods are moved to rcmgr package

Try to change obs to rcmgr

[kehiy]

@b00f the linter issue is okay, it was fixed before.
we have an issue in the network test.

[codecov]

Codecov Report

Merging #692 (4910bbb) into main (b56af2f) will not change coverage.
The diff coverage is 80.00%.

@@           Coverage Diff           @@
##             main     #692   +/-   ##
=======================================
  Coverage   83.48%   83.48%           
=======================================
  Files         168      168           
  Lines        7969     7969           
=======================================
  Hits         6653     6653           
  Misses       1012     1012           
  Partials      304      304