Update IREE test suite to use iree-org/iree-test-suites@c47d13c (#19617)

Changes:
https://github.com/iree-org/iree-test-suites/compare/fece13306aff1d8ef33858dccfdb10eaf8b036c2...c47d13c0730a51beed3bef6128e7a61a80f85ce9

Signed-off-by: MaheshRavishankar <mravisha@amd.com>

.github/workflows/pkgci_test_sharktank.yml

diff --git a/.github/workflows/pkgci_test_sharktank.yml b/.github/workflows/pkgci_test_sharktank.yml
index 211d88b..7e57c9b 100644
--- a/.github/workflows/pkgci_test_sharktank.yml
+++ b/.github/workflows/pkgci_test_sharktank.yml
@@ -60,7 +60,7 @@
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           repository: iree-org/iree-test-suites
-          ref: fece13306aff1d8ef33858dccfdb10eaf8b036c2
+          ref: c47d13c0730a51beed3bef6128e7a61a80f85ce9
           path: iree-test-suites
           lfs: true
       - name: Install Sharktank models test suite requirements