Process scraper: Use same scrape time for all data points coming from same process

[james-bebbington]

Link to tracking Issue: #1271

Updated all metrics related to the same process to use the same timestamp.

[codecov]

Codecov Report

Merging #1539 into master will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #1539      +/-   ##
==========================================
+ Coverage   91.42%   91.44%   +0.01%     
==========================================
  Files         248      248              
  Lines       17219    17220       +1     
==========================================
+ Hits        15743    15746       +3     
+ Misses       1064     1063       -1     
+ Partials      412      411       -1     

Impacted Files	Coverage Δ
...internal/scraper/processscraper/process_scraper.go	98.34% <100.00%> (+0.01%)	⬆️
...al/scraper/processscraper/process_scraper_linux.go	100.00% <100.00%> (ø)
translator/internaldata/resource_to_oc.go	87.50% <0.00%> (+2.08%)	⬆️

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