Fix docs build ref

Signed-off-by: Charlie Truong <chtruong@nvidia.com>

Author: chtruong814

.github/workflows/build-docs.yml

@@ -22,6 +22,6 @@ on:
 
 jobs:
   build-docs:
-    uses: NVIDIA-NeMo/FW-CI-templates/.github/workflows/_build_docs.yml@vf1974026d5397dbeec39d12cbd69e2589ad0bd2d
+    uses: NVIDIA-NeMo/FW-CI-templates/.github/workflows/_build_docs.yml@f1974026d5397dbeec39d12cbd69e2589ad0bd2d
     with:
       sync-all: true