chore(deps): update conda-incubator/setup-miniconda action to v4

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
conda-incubator/setup-miniconda	action	major	v3 → v4

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Release Notes

conda-incubator/setup-miniconda (conda-incubator/setup-miniconda)

v4.0.1

Compare Source

Fixes

• Fix MultipleKeysError on conda 25.11+ when a user-supplied condarc-file
  already declares auto_activate: now only one of auto_activate /
  auto_activate_base is written to .condarc, preferring whichever key the
  user's existing condarc uses.
• Add auto_activate to the boolean coercion set so its value is serialized as
  a YAML boolean when it is the chosen canonical key.
• Add local_repodata_ttl to KNOWN_CONDARC_KEYS to silence a spurious
  "Unrecognized condarc key" warning for a valid conda key.

v4.0.0

Compare Source

Breaking Changes

• #​459: Upgrade action runtime to Node.js 24.x (requires runners with
  Node 24 support; this is the reason for the v4 major bump)
• #​450: Switch action build to ESM (for @actions/exec v3)

Features and Enhancements

• #​469: Add conda-init input to optionally skip conda init and
  document activation for restricted environments
• #​482: Add channels parsing utility and URL validation
• #​481: Enable stricter TypeScript checks and typing
• #​480: Add more tests, increase coverage, add Codecov integration and
  coverage badge
• #​479: Add TypeDoc-based API docs, generation and checks; configure
  GitHub Pages and Netlify previews

Fixes

• #​465: Fix double channel configuration being applied
• #​467: Speed up Windows post-run cleanup by moving the extracted
  packages directory instead of removing files one by one
• #​470: Fix name-version-build syntax expansion and add tests
• #​475: Split shell init and activation of the test environment to remove
  spurious warning

Performance

• #​486: Remove HTML index scraping for Miniconda version validation
• #​487: Parallelize Windows takeown calls with Promise.all
• #​488: Replace isDefaultEnvironment subprocess with local YAML reads
• #​489: Replace conda config subprocesses with direct .condarc YAML
  writes

Tasks and Maintenance

• #​444: Bump conda-incubator/setup-miniconda from 3.2.0 to 3.3.0
• #​445: Bump actions/checkout from 6.0.1 to 6.0.2
• #​449: Bump @​actions/exec from 2.0.0 to 3.0.0
• #​456, #​484, #​491: Bump actions/upload-artifact
• #​460: Bump actions/download-artifact from 7.0.0 to 8.0.1
• #​464: Update dependencies for actions and packages
• #​466: Bump @​actions/tool-cache from 2.0.2 to 4.0.0
• #​473: Bump flatted from 3.2.9 to 3.4.2
• #​476: Bump picomatch
• #​477: Bump conda-incubator/installer from 0.1.0 to 0.1.1
• #​485: Bump vite from 8.0.0 to 8.0.8
• #​492: Bump actions/upload-pages-artifact from 3 to 5
• #​493: Bump marocchino/sticky-pull-request-comment from 2 to 3
• #​494: Bump actions/deploy-pages from 4 to 5
• #​495: Bump codecov/codecov-action from 5 to 6
• #​496: Bump @​actions/core from 3.0.0 to 3.0.1

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