fix invalid escape sequence (BugFix)

[rene-oromtz]

Description

This is a minor PR to solve an invalid escape sequence on benchmarks/system/cpu_on_idle and benchmarks/system/disk_on_idle by using raw strings as suggested in https://docs.python.org/3/library/re.html#module-re

Resolved issues

Resolves #2532

Documentation

Tests

Tested locally on Noble

Before:

iostat -x -m 1 10 | python3 -c 'import sys, re; lines="".join(sys.stdin.readlines()); l=[float(n) for n in (re.findall("idle\n.*?(\S+)\n", lines))]; print(sum(l)/len(l),"%")'
<string>:1: SyntaxWarning: invalid escape sequence '\S'
89.652 %

After:

iostat -x -m 1 10 | python3 -c 'import sys, re; lines="".join(sys.stdin.readlines()); l=[float(n) for n in re.findall(r"idle\n.*?(\S+)\n", lines)]; print(sum(l)/len(l),"%")'
85.881 %

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 58.92%. Comparing base (1061d49) to head (a07320f).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2533   +/-   ##
=======================================
  Coverage   58.92%   58.92%           
=======================================
  Files         476      476           
  Lines       48039    48039           
  Branches     8577     8577           
=======================================
  Hits        28306    28306           
  Misses      18841    18841           
  Partials      892      892           

Flag	Coverage Δ
provider-base	34.10% <ø> (ø)

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[fernando79513]

I think this is addressed in this PR:
c28b30c

I will review it today.
Let me know if this fixes your issue.

[rene-oromtz]

@fernando79513 Yes, that will do it! I swear I searched for a related bug but couldn't find any, maybe I was using a wrong keyword... Anyway, thanks for the heads up, I will close this PR as duplicate