Bump devfile gem to '0.4.8'

Issue: Ensure Devfile Gem works with Go version 1.24.5 (gitlab-org/ruby/gems/devfile-gem#36 - closed) • Chad Woolley • 18.3

What does this MR do and why?

Bump devfile gem to '0.4.8'

See Update go version to 1.24.6 and ruby to 3.3.9 (gitlab-org/ruby/gems/devfile-gem!89 - merged) for included changes.

References

• Update go version to 1.24.6 and ruby to 3.3.9 (gitlab-org/ruby/gems/devfile-gem!89 - merged) • Chad Woolley • 18.3
• Ensure Devfile Gem works with Go version 1.24.5 (gitlab-org/ruby/gems/devfile-gem#36 - closed) • Chad Woolley • 18.3

How to set up and validate locally

• Workspaces creation and devfile processing should work

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