Don't stop upon packet decode errors

[ivan4th]

We shouldn't stop the collector if it happens to receive a dataset packet before the corresponding template

[vmwclabot]

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[codecov[bot]]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 73.51%. Comparing base (63fca07) to head (2d390c0). Report is 49 commits behind head on main.

Files	Patch %	Lines
pkg/collector/udp.go	0.00%	1 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #277      +/-   ##
==========================================
- Coverage   73.58%   73.51%   -0.08%     
==========================================
  Files          18       18              
  Lines        2760     2760              
==========================================
- Hits         2031     2029       -2     
- Misses        563      564       +1     
- Partials      166      167       +1     

Flag	Coverage Δ
integration-tests	51.48% <0.00%> (-0.17%)	:arrow_down:
unit-tests	72.21% <0.00%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
pkg/collector/udp.go	68.13% <0.00%> (ø)

... and 1 file with indirect coverage changes

[vmwclabot]

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[antoninbas]

Superseded by https://github.com/vmware/go-ipfix/pull/352