Fix/respond with api version only if server is older

[carpawell]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 24.71910% with 67 lines in your changes missing coverage. Please review.
✅ Project coverage is 27.20%. Comparing base (fc9f062) to head (21f0a3f).

Files with missing lines	Patch %	Lines
pkg/services/object/server.go	20.00%	38 Missing and 2 partials ⚠️
pkg/services/netmap/server.go	0.00%	8 Missing ⚠️
cmd/neofs-node/reputation.go	0.00%	7 Missing ⚠️
pkg/services/accounting/server.go	0.00%	4 Missing ⚠️
pkg/services/container/server.go	63.63%	4 Missing ⚠️
pkg/services/session/server.go	0.00%	4 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #4110   +/-   ##
=======================================
  Coverage   27.19%   27.20%           
=======================================
  Files         676      677    +1     
  Lines       46227    46258   +31     
=======================================
+ Hits        12572    12584   +12     
- Misses      32441    32458   +17     
- Partials     1214     1216    +2     

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