docs: fix typo in file name

[davidxia]

Description

new_version.sh doesn't exist. File is new-version.sh.

[briandealwis]

Thanks!

[codecov]

Codecov Report

Merging #6887 (0c323e6) into main (290280e) will decrease coverage by 1.41%.
The diff coverage is 61.83%.

@@            Coverage Diff             @@
##             main    #6887      +/-   ##
==========================================
- Coverage   70.48%   69.06%   -1.42%     
==========================================
  Files         515      547      +32     
  Lines       23150    25081    +1931     
==========================================
+ Hits        16317    17323    +1006     
- Misses       5776     6586     +810     
- Partials     1057     1172     +115     

Impacted Files	Coverage Δ
cmd/skaffold/app/cmd/deploy.go	52.00% <ø> (-1.85%)	⬇️
cmd/skaffold/app/cmd/dev.go	84.61% <0.00%> (ø)
cmd/skaffold/app/cmd/flags.go	91.00% <0.00%> (+0.18%)	⬆️
cmd/skaffold/app/cmd/render.go	36.66% <0.00%> (-4.72%)	⬇️
cmd/skaffold/skaffold.go	0.00% <0.00%> (ø)
cmd/skaffold/app/cmd/inspect_tests.go	62.50% <14.28%> (-1.14%)	⬇️
cmd/skaffold/app/cmd/fix.go	68.85% <40.00%> (-7.62%)	⬇️
cmd/skaffold/app/cmd/lint.go	42.85% <42.85%> (ø)
cmd/skaffold/app/cmd/find_configs.go	48.88% <50.00%> (+0.24%)	⬆️
cmd/skaffold/app/skaffold.go	76.19% <70.00%> (-8.43%)	⬇️
... and 162 more

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