Fixed incorrect function count in the log message when getting function metadata from providers

[kshyju]

resolves #10220

Fixing incorrect function count in the log message when getting function metadata from providers. Previously we were logging the length of the result array instead of the actual function count (stored in that array).

Pull request checklist

IMPORTANT: Currently, changes must be backported to the in-proc branch to be included in Core Tools and non-Flex deployments.

• Backporting to the in-proc branch is not required
  • Otherwise: Link to backporting PR - [in-proc backport] Fixed incorrect function count in the log message when getting function metadata from providers #10223
• My changes do not require documentation changes
  • Otherwise: Documentation issue linked to PR
• My changes should not be added to the release notes for the next release
  • Otherwise: I've added my notes to release_notes.md
• My changes do not need to be backported to a previous version
  • Otherwise: Backport tracked by issue/PR [in-proc backport] Fixed incorrect function count in the log message when getting function metadata from providers #10223
• My changes do not require diagnostic events changes
  • Otherwise: I have added/updated all related diagnostic events and their documentation (Documentation issue linked to PR)
• I have added all required tests (Unit tests, E2E tests)