Sweep: Replace x-hack in artifact scripts

[sweep-nightly[bot]]

• In lib/functions/artifacts/artifact-full_firmware.sh, replace all instances of the 'x-hack' with the '==' operator for comparison in bash or '=' operator in POSIX shell without the 'x' prefix.
• In lib/functions/artifacts/artifact-kernel.sh, replace all instances of the 'x-hack' with the '==' operator for comparison in bash or '=' operator in POSIX shell without the 'x' prefix.

Parent issue: #11

[sweep-nightly[bot]]

---

Actions (click)

• [ ] ↻ Restart Sweep

---

❌ Unable to Complete PR

It looks like an issue has occurred around fetching the files. Perhaps the repo has not been initialized. If this error persists contact team@sweep.dev.

@sweep-nightly[bot], editing this issue description to include more details will automatically make me relaunch.

For bonus GPT-4 tickets, please report this bug on Discord.

---

🎉 Latest improvements to Sweep:

• Getting Sweep to run linters before committing! Check out Sweep Sandbox Configs to set it up.
• Added support for self-hosting! Check out Self-hosting Sweep to get started.
• [Self Hosting] Multiple options to compute vector embeddings, configure your .env file using VECTOR_EMBEDDING_SOURCE

---

💡 To recreate the pull request edit the issue title or description. To tweak the pull request, leave a comment on the pull request.