Adding `init-nuget` to Linux ARM64 (#44745)

.azure/pipelines/ci.yml

@@ -568,7 +568,7 @@ stages:
               $(_InternalRuntimeDownloadArgs)
           displayName: Run build.sh
         - script: git clean -xfd src/**/obj/;
-            ./dockerbuild.sh rhel --ci --nobl --arch arm64 --build-installers --no-build-deps --no-build-nodejs
+            ./dockerbuild.sh rhel --ci --nobl --arch arm64 --build-installers --no-build-deps --no-build-nodejs  --init-nuget
             -p:OnlyPackPlatformSpecificPackages=true -p:BuildRuntimeArchive=false -p:LinuxInstallerType=rpm
             -p:AssetManifestFileName=aspnetcore-Linux_arm64.xml
             $(_BuildArgs)