Clarify instructions for handling linting and formatting conflicts.

## Summary

Upgrade GitHub Actions to their latest versions to ensure compatibility
with Node 24, as Node 20 will reach end-of-life in April 2026.

## Changes

| Action | Old Version(s) | New Version | Release | Files |
|--------|---------------|-------------|---------|-------|
| `actions/checkout` |
[`v3`](https://github.com/actions/checkout/releases/tag/v3) |
[`v6`](https://github.com/actions/checkout/releases/tag/v6) |
[Release](https://github.com/actions/checkout/releases/tag/v6) |
codeql-analysis.yml |

## Context

Per [GitHub's
announcement](https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/),
Node 20 is being deprecated and runners will begin using Node 24 by
default starting March 4th, 2026.

### Why this matters

- **Node 20 EOL**: April 2026
- **Node 24 default**: March 4th, 2026
- **Action**: Update to latest action versions that support Node 24

### Security Note

Actions that were previously pinned to commit SHAs remain pinned to SHAs
(updated to the latest release SHA) to maintain the security benefits of
immutable references.

### Testing

These changes only affect CI/CD workflow configurations and should not
impact application functionality. The workflows should be tested by
running them on a branch before merging.

Fix  b/469102717

It creates the Remote Task interface for running tasks remotely as a job
on different infrastructures such as GCP Batch, Kubernetes, Cloud Run
and so on.

For now this PR creates this abstraction with the `create_job` function
as the shared contract for the interface.

It also move the GCP Batch implementation to behind of this interface.

Removed specific logging statements from
`src/clusterfuzz/_internal/system/environment.py` as requested. Verified
the changes by running the relevant tests in
`src/clusterfuzz/_internal/tests/core/system/environment_test.py`.


---
*PR created automatically by Jules for task
[15698190189943788410](https://jules.google.com/task/15698190189943788410)
started by @jonathanmetzman*

---------

Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>