feat: set firelog API key

[gsquared94]

This PR sets the firelog API key in the skaffold binary. The value is available from the release job.

[aaron-prindle]

LGTM!

[codecov]

Codecov Report

Merging #8617 (0d232a7) into main (290280e) will decrease coverage by 6.22%.
The diff coverage is 54.74%.

@@            Coverage Diff             @@
##             main    #8617      +/-   ##
==========================================
- Coverage   70.48%   64.27%   -6.22%     
==========================================
  Files         515      613      +98     
  Lines       23150    30698    +7548     
==========================================
+ Hits        16317    19730    +3413     
- Misses       5776     9490    +3714     
- Partials     1057     1478     +421     

Impacted Files	Coverage Δ
cmd/skaffold/app/cmd/completion.go	13.04% <0.00%> (-1.25%)	⬇️
cmd/skaffold/app/cmd/config/list.go	65.21% <ø> (ø)
cmd/skaffold/app/cmd/config/set.go	88.72% <ø> (ø)
cmd/skaffold/app/cmd/config/util.go	54.28% <ø> (ø)
cmd/skaffold/app/cmd/credits.go	100.00% <ø> (ø)
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/generate_pipeline.go	60.00% <ø> (ø)
cmd/skaffold/app/cmd/inspect_modules.go	65.00% <ø> (ø)
cmd/skaffold/app/cmd/inspect_profiles.go	66.66% <ø> (ø)
... and 39 more

... and 392 files with indirect coverage changes

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