Update filedownloader package

[lpusok]

Checklist

• I've read and followed the Contribution Guidelines
• step.yml and README.md is updated with the changes (if needed)

Version

Requires a PATCH version update

Context

Updated filedownloader package to resolve a package dependency inconsistency while updating project-scanner Step. The PR that that helped detect this issue: bitrise-steplib/steps-project-scanner#124.
Resolves: STEP-1804

Solved issue:

❯❯ go build
# github.com/bitrise-steplib/steps-git-clone/gitclone
vendor/github.com/bitrise-steplib/steps-git-clone/gitclone/checkout_method_pr_auto_diff.go:89:58: cannot use filedownloader.New(http.DefaultClient) (type filedownloader.HTTPFileDownloader) as type input.FileDownloader in argument to input.NewFileProvider:
        filedownloader.HTTPFileDownloader does not implement input.FileDownloader (missing GetRemoteContents method)

Decisions

Only the minimum required package was updated at this time.