deps: Remove Go minor version from go.mods

[arjan-bal]

The Go minor versions were added when bumping the go major version from 1.21 to 1.22 by running go get go@1.22 && go mod tidy. Specifying the minor version is not necessary unless a dependency specifies a go minor version. This PR removes the minor version from all but one go.mod file which is used for testing.

Why

As mentioned in this thread, grpc-go being a library should not specify a patch version.

RELEASE NOTES:

• Relax minimum Go version requirement from go1.22.7 to go1.22.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.01%. Comparing base (e2b98f9) to head (a47a96c).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #7831      +/-   ##
==========================================
+ Coverage   81.91%   82.01%   +0.09%     
==========================================
  Files         374      374              
  Lines       37930    37930              
==========================================
+ Hits        31071    31107      +36     
+ Misses       5566     5539      -27     
+ Partials     1293     1284       -9     

see 20 files with indirect coverage changes

[dfawley]

Thanks for cleaning this up.

[matthewhartstonge]

Adding this to the conversation over at: golang/go#65847

Tracking issues related to the changes to the go/toolchain directive