docs: Fix incorrect default set for project for jib

[tejal29]

Fixes #7454

I verified for jib project key there was no default set in pkg/skaffold/schema/defaults folder and also nothing checked here.

skaffold/pkg/skaffold/build/jib/jib.go

Line 94 in e5a846c

func getProjectKey(workspace string, a *latest.JibArtifact) projectKey {

[conventional-commit-lint-gcf]

🤖 I detect that the PR title and the commit message differ and there's only one commit. To use the PR title for the commit history, you can use Github's automerge feature with squashing, or use automerge label. Good luck human!

-- conventional-commit-lint bot
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[codecov]

Codecov Report

Merging #7857 (c0ddd8d) into main (290280e) will decrease coverage by 3.83%.
The diff coverage is 53.59%.

@@            Coverage Diff             @@
##             main    #7857      +/-   ##
==========================================
- Coverage   70.48%   66.65%   -3.84%     
==========================================
  Files         515      593      +78     
  Lines       23150    28726    +5576     
==========================================
+ Hits        16317    19146    +2829     
- Misses       5776     8174    +2398     
- Partials     1057     1406     +349     

Impacted Files	Coverage Δ
cmd/skaffold/app/cmd/credits/export.go	0.00% <0.00%> (ø)
cmd/skaffold/app/cmd/deploy.go	40.90% <0.00%> (-12.94%)	⬇️
cmd/skaffold/app/cmd/test.go	44.44% <0.00%> (ø)
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/render.go	35.48% <18.18%> (-5.90%)	⬇️
cmd/skaffold/app/cmd/lsp.go	28.12% <28.12%> (ø)
cmd/skaffold/app/cmd/run.go	64.28% <33.33%> (-9.63%)	⬇️
cmd/skaffold/app/cmd/fix.go	56.41% <37.50%> (-20.07%)	⬇️
cmd/skaffold/app/cmd/verify.go	41.17% <41.17%> (ø)
... and 365 more

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