build(deps): bump xu-cheng/latex-action from 2 to 4

[dependabot]

Bumps xu-cheng/latex-action from 2 to 4.

Release notes

Sourced from xu-cheng/latex-action's releases.

v4

[!NOTE] This is a meta tag pointed to the latest release.

3.3.0

• Support TeXLive 2025.

3.2.0

• Support TeXLive 2024.
• Auto set tlmgr repo url for historical TeXLive version.

3.1.0

Port changes from xu-cheng/texlive-action

• use env to pass inputs
• better printed commands

3.0.2

• Expose more env to docker container

3.0.1

• Enforce using true for boolean input options.
• Remove deprecated extra_packages input.

3.0.0

• Support selecting old versions of TeXLive by action input.
• Support customizing the docker images. Only latex-docker images are recommended to be used.
• Drop the glob_root_input input. Now, the glob path are always used.

v3

[!NOTE] This is a meta tag pointed to the latest v3 release.

2.8.2

• Fix glob pattern expanding.

2.8.1

• Setup git safe.directory for the action.

2.8.0

• Support old versions of TeXLive

2.7.1

• Fix extra_system_packages doesn't work if glob_root_file is true.

2.7.0

• Add continue_on_error option.

2.6.0

• Support glob star in the glob pattern.
• Update document.

... (truncated)

Commits

• 6549dc2 feat: support texlive 2026
• 06c9f6d feat: add dependabot
• 6ba9375 chore: update actions
• d6769d3 README.md: minor additions
• 577e3bf chore: Bump GitHub checkout action to latest released version v6
• e370bea fix: correct broken link in README.md
• ee10d5a chore: update license
• 81b7b9a ci: update permissions
• 6e08cb1 ci: update permissions
• a1faf8e chore: update README
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot show <dependency name> ignore conditions will show all of the ignore conditions of the specified dependency
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)