chore(deps): replace mitchellh/mapstructure with go-viper/mapstructure/v2

[Abhishek9639]

Description

Swap out the archived mitchellh/mapstructure for the maintained go-viper/mapstructure/v2 fork, and bump score-go to v1.13.0 which already has the same migration done.

Changes:

• Updated the import in internal/provisioners/templateprov/template.go.
• Replaced mitchellh/mapstructure with go-viper/mapstructure/v2 in go.mod.
• Bumped score-go from v1.12.1 to v1.13.0.
• Ran go mod tidy.

What does this PR do?

mitchellh/mapstructure is archived and no longer maintained. This replaces it with the actively maintained fork, following the plan discussed in #443 and after the same change was already merged in score-go (score-spec/score-go#176).

The indirect deps (copystructure/reflectwalk) are still pulled in through Masterminds/sprig that'll be handled separately as discussed in #443.

Types of changes

• New chore (expected functionality to be implemented).

Checklist:

• I've signed off with an email address that matches the commit author.

[Abhishek9639]

Hi @mathieu-benoit,
Opened the score-compose PR with the mapstructure migration and the score-go v1.13.0 bump.
Let me know if anything needs to be changed.
Thanks

[Abhishek9639]

Hi @mathieu-benoit,
The test-container check is failing because Docker Hub secrets aren't available for fork PRs. The other checks (test-code, test-multi-arch-build) are passing. Could you re-run this check from your end or let me know if there's something else I should do?
Thanks

[mathieu-benoit]

@Abhishek9639, yes exactly, nothing related to what you did, I tested something and just rolled it back. No worries. Continuing my review and tests.

[mathieu-benoit]

LGTM!

Quick diff between this new version and current latest in terms of packages with Docker Scout, all good!

    -    1 packages removed  
    ⎌    4 packages changed (↑ 3 upgraded, ↓ 1 downgraded)  
        50 packages unchanged
  
     Package                                Type    Version                                  Compared Version  
  
  ↑  github.com/compose-spec/compose-go/v2  golang  2.10.2                                   2.10.1            
  -  github.com/mitchellh/mapstructure      golang                                           1.5.0             
  ↑  github.com/olekukonko/tablewriter      golang  1.1.4                                    1.1.3             
  ↓  github.com/score-spec/score-compose    golang  0.0.0-20260408004047-6fc785e66453+dirty  0.36.5            
  ↑  github.com/score-spec/score-go         golang  1.13.0                                   1.12.1

[Abhishek9639]

Rebased on latest main to pick up the CI fix from #452. Force-pushed to keep the branch clean.

[Abhishek9639]

Thanks for the review