chore: simplify source map template to string literal

[chenjiahan]

Summary

Replace the devtoolModuleFilenameTemplate function with a string literal [absolute-resource-path] to simplify the config.

Related Links

• https://rspack.rs/config/output#outputdevtoolmodulefilenametemplate

Checklist

• Tests updated (or not required).
• Documentation updated (or not required).

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[Copilot]

Pull Request Overview

This PR refactors the devtoolModuleFilenameTemplate configuration from a function to a string template literal. The change simplifies the code by using webpack/rspack's built-in template string [absolute-resource-path] instead of a custom function that returned absoluteResourcePath.

• Replaced function-based template with string literal template [absolute-resource-path]
• Updated constant naming from sourceMapFilenameTemplate to DEFAULT_SOURCE_MAP_TEMPLATE
• Updated all test snapshots to reflect the new string template format

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
packages/core/src/plugins/sourceMap.ts	Refactored source map template from function to string literal
packages/core/tests/snapshots/environments.test.ts.snap	Updated snapshot to show string template instead of [Function]
packages/core/tests/snapshots/default.test.ts.snap	Updated snapshot to show string template instead of [Function]
packages/core/tests/snapshots/builder.test.ts.snap	Updated snapshot to show string template instead of [Function]
packages/compat/webpack/tests/snapshots/default.test.ts.snap	Updated snapshot to show string template instead of [Function]

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