Update references from llvm-beanz to llvm (#146177)

This fixes the HLSL actions to pull from the LLVM organization instead
of the original repository under my personal GitHub.
diff --git a/.github/workflows/hlsl-test-all.yaml b/.github/workflows/hlsl-test-all.yaml
index 93a1c6d..b6530fe 100644
--- a/.github/workflows/hlsl-test-all.yaml
+++ b/.github/workflows/hlsl-test-all.yaml
@@ -43,13 +43,13 @@
       - name: Checkout OffloadTest
         uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
         with:
-          repository: llvm-beanz/offload-test-suite
+          repository: llvm/offload-test-suite
           ref: main
           path: OffloadTest
       - name: Checkout Golden Images
         uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
         with:
-          repository: llvm-beanz/offload-golden-images
+          repository: llvm/offload-golden-images
           ref: main
           path: golden-images
       - name: Setup Windows