Fix typo in nvidia repo setup and add missing benchmark capture

- Fix typo: "locatl" -> "local" in updateDnfWithNvidiaPkg function
- Add dnf_makecache call after nvidia repo setup for Mariner
- Add missing benchmark capture for nvidia apt update in Ubuntu

Signed-off-by: Suraj Deshmukh <suraj.deshmukh@microsoft.com>

Author: surajssd

parts/linux/cloud-init/artifacts/mariner/cse_install_mariner.sh

@@ -191,8 +191,9 @@ updateDnfWithNvidiaPkg() {
     return
   fi
 
-  locatl nvidia_repo_url="https://developer.download.nvidia.com/compute/cuda/repos/azl3/${repo_arch}/cuda-azl3.repo"
+  local nvidia_repo_url="https://developer.download.nvidia.com/compute/cuda/repos/azl3/${repo_arch}/cuda-azl3.repo"
   retrycmd_curl_file 120 5 25 ${nvidia_repo_path} ${nvidia_repo_url} || exit $ERR_NVIDIA_AZURELINUX_REPO_FILE_DOWNLOAD_TIMEOUT
+  dnf_makecache || exit $ERR_APT_UPDATE_TIMEOUT
 }
 
 installNvidiaDCGMPkgFromCache() {

vhdbuilder/packer/install-dependencies.sh

@@ -290,6 +290,7 @@ if [ "${OS}" = "${UBUNTU_OS_NAME}" ]; then
   updateAptWithMicrosoftPkg
   capture_benchmark "${SCRIPT_NAME}_update_apt_with_msft_pkg"
   updateAptWithNvidiaPkg
+  capture_benchmark "${SCRIPT_NAME}_update_apt_with_nvidia_pkg"
 fi
 
 # check if COMPONENTS_FILEPATH exists