Fix version source

[lkingland]

🐛 default source-built version to v0.0.0+source

Fixes:

❯ go build ./cmd/func
❯ ./func version
%!v(PANIC=String method: Invalid Semantic Version)

To be:

❯ go build ./cmd/func
❯ ./func version
v0.0.0+source

a syntactically valid semver using the metadata suffix to hint this was a source-direct build.

/kind bug

[codecov]

Codecov Report

Patch coverage: 50.00% and project coverage change: +2.02% 🎉

Comparison is base (1163a5e) 60.69% compared to head (9845042) 62.71%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1933      +/-   ##
==========================================
+ Coverage   60.69%   62.71%   +2.02%     
==========================================
  Files         107      107              
  Lines       13819    13825       +6     
==========================================
+ Hits         8387     8670     +283     
+ Misses       4603     4273     -330     
- Partials      829      882      +53     

Flag	Coverage Δ
e2e-test	35.49% <0.00%> (-0.02%)	⬇️
e2e-test-oncluster-runtime	25.65% <0.00%> (?)
e2e-test-runtime-go	25.91% <0.00%> (?)
e2e-test-runtime-node	26.94% <0.00%> (?)
e2e-test-runtime-python	26.94% <0.00%> (?)
e2e-test-runtime-quarkus	27.05% <0.00%> (?)
e2e-test-runtime-rust	25.94% <0.00%> (?)
e2e-test-runtime-springboot	26.07% <0.00%> (?)
e2e-test-runtime-typescript	27.05% <0.00%> (?)
integration-tests	51.50% <50.00%> (+2.20%)	⬆️
unit-tests-macos-latest	48.27% <50.00%> (+<0.01%)	⬆️
unit-tests-ubuntu-latest	49.06% <50.00%> (+<0.01%)	⬆️
unit-tests-windows-latest	48.31% <50.00%> (+<0.01%)	⬆️

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

Files Changed	Coverage Δ
cmd/root.go	81.38% <50.00%> (-0.84%)	⬇️

... and 11 files with indirect coverage changes

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[matejvasek]

/approve
/lgtm

[knative-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: lkingland, matejvasek

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