[Release 1.29] Update flannel chart to fix vni error (#5953)

[manuelbuil]

Backport: #5953
Issue: #5994

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 18.85%. Comparing base (d8f98fd) to head (c5a8a4c).
Report is 109 commits behind head on release-1.29.

❗ There is a different number of reports uploaded between BASE (d8f98fd) and HEAD (c5a8a4c). Click for more details.

HEAD has 5 uploads less than BASE

Flag	BASE (d8f98fd)	HEAD (c5a8a4c)
unittests	3	1
inttests	3	0

Additional details and impacted files

@@               Coverage Diff                @@
##           release-1.29    #5996      +/-   ##
================================================
- Coverage         26.49%   18.85%   -7.64%     
================================================
  Files                31       30       -1     
  Lines              2657     2646      -11     
================================================
- Hits                704      499     -205     
- Misses             1907     2105     +198     
+ Partials             46       42       -4     

Flag	Coverage Δ
inttests	?
unittests	18.85% <ø> (ø)

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