feat: support --version flag to print built version#7
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Add a Version variable in cmd/root.go that defaults to 'dev' and can be overridden at build time via ldflags -X. Wire it into Cobra's built-in --version flag, and inject the version in .goreleaser.yml and Dockerfile so released binaries include the correct version.
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Add support for
since --versionandsince -vto print the built version of the binary.Summary
Versionvariable incmd/root.gothat defaults todevfor development builds--version/-vflag support.goreleaser.ymlto inject the release version vialdflags -Xduring release buildsDockerfileto accept version as a build arg and inject itMakefileto supportVERSIONoverride at build time