OATS: update tempo to 2.9.0, otel-collector-contrib to 0.143.1 and fix configuration

[mariomac]

Invalidates #776 and #808

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 47.24%. Comparing base (9ee485e) to head (0db8ae4).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1068   +/-   ##
=======================================
  Coverage   47.24%   47.24%           
=======================================
  Files         260      260           
  Lines       27370    27370           
=======================================
+ Hits        12930    12932    +2     
+ Misses      13579    13576    -3     
- Partials      861      862    +1     

Flag	Coverage Δ
integration-test	22.86% <ø> (ø)
integration-test-arm	0.00% <ø> (ø)
k8s-integration-test	2.64% <ø> (+<0.01%)	⬆️
oats-test	0.00% <ø> (ø)
unittests	48.45% <ø> (+<0.01%)	⬆️

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[grcevski]

LGTM!