buildinfo.TimeFormat rejects valid ISO8601 timestamps

[Ext3h]

Describe the bug

buildinfo.TimeFormat does not match 2025-01-08T14:37:22.000Z because -0700 was used in the layout string instead of Z0700.

This is the root cause of jfrog/jfrog-cli#2823

In comparison, Artifactory does accept any valid ISO8601 conforming timestamp in the build info.

Current behavior

buildinfo.TimeFormat does not match 2025-01-08T14:37:22.000Z.

Reproduction steps

See jfrog/jfrog-cli#2823

Expected behavior

buildinfo.TimeFormat does match 2025-01-08T14:37:22.000Z.

Operating system type and version

JFrog CLI 2.73.0

[Ext3h]

Just for completeness sake - this has already prompted a workaround in Conan 2.x: https://github.com/conan-io/conan-extensions/blob/main/extensions/commands/art/cmd_build_info.py#L59

But the fact remains that the JF CLI tool is currently incompatible with valid build specs.

And the published schema also includes Z as a valid time zone designator:

build-info-go/buildinfo-schema.json

Line 63 in 9b6f2ec

"pattern": "^\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}.\\d{3}(Z|[+-]\\d{4})$"