chore(earthfile): update earthly to earth in comments

[janishorsts]

Summary by CodeRabbit

• Documentation
  • Updated example commands and descriptions to use the current earth command terminology.
  • Refreshed secret-provisioning, multiplatform, cutoff-optimization, and gRPC examples.
  • Updated release documentation to reference Earth-inferred commit values.
  • Corrected the Azure Container Registry example endpoint.
  • Cleaned up outdated build and troubleshooting comments without changing build behavior.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Advanced

Run ID: 69e329d1-4052-4519-b7cc-0ab4d9370763

📥 Commits

Reviewing files that changed from the base of the PR and between ee6be11 and b4493c0.

📒 Files selected for processing (8)

• Earthfile
• examples/cutoff-optimization/Earthfile
• examples/grpc/Earthfile
• examples/multiplatform/Earthfile
• examples/secrets/Earthfile
• release/Earthfile
• tests/cloud-push-pull/Earthfile
• tests/integration-base/Earthfile

💤 Files with no reviewable changes (1)

• tests/integration-base/Earthfile

Included review availability: Your plan provides up to 10 included reviews per hour; 7 remain after this review.

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📝 Walkthrough

Walkthrough

The change updates comments, documented commands, and commented test references to use current Earth naming. It removes obsolete comments. No build behavior changes.

Changes

Earth naming and comment cleanup

Layer / File(s)	Summary
Root build comments Earthfile	Updated target descriptions and removed an obsolete Homebrew synchronization comment.
Example command documentation examples/cutoff-optimization/Earthfile, examples/grpc/Earthfile, examples/multiplatform/Earthfile, examples/secrets/Earthfile	Updated documented commands and comments from earthly to earth.
Release and test references release/Earthfile, tests/cloud-push-pull/Earthfile, tests/integration-base/Earthfile	Updated release SHA comments, corrected the Azure registry host, and removed a commented debug command.

Priority: ⬇️ Low

Estimated code review effort: 1 (Trivial) | ~5 minutes

Change: Other

Merge Risk: ⚪ Minimal · up to b4493

This documentation-only update does not introduce a known production or build risk and is ready to merge.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly summarizes the main change: updating comments and examples from “earthly” to “earth.”
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch chore-earthfile-comment-earthly

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_{Comment @coderabbitai help to get the list of available commands.}

[github-actions]

🎉 Are we earthbuild yet?

Great progress! You've reduced "earthly" occurrences by 16 (0.57%)

📈 Overall Progress

Branch	Total Count
main	2813
This PR	2797
Difference	-16 (0.57%)

📁 Changes by file type:

File Type	Change
Go files (.go)	➖ No change
Documentation (.md)	➖ No change
Earthfiles	✅ -16

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Keep up the great work migrating from Earthly to Earthbuild! 🚀

💡 Tips for finding more occurrences

Run locally to see detailed breakdown:

./.github/scripts/count-earthly.sh

Note that the goal is not to reach 0.
There is anticipated to be at least some occurrences of earthly in the source code due to backwards compatibility with config files and language constructs.