fix(ci): wrong workflow build argument input key (#2142)

Author: ndbaker1

.github/workflows/ci-manual.yaml

@@ -75,7 +75,7 @@ jobs:
       k8s_versions: ${{ inputs.k8s_versions }}
       os_distros: ${{ inputs.os_distros }}
       git_sha: ${{ inputs.git_sha }}
-      build_arguments: ${{ inputs.build-arguments }}
+      build_arguments: ${{ inputs.build_arguments }}
       resource_id: "ci-${{ inputs.pr_number }}-${{ needs.setup.outputs.git_sha_short }}-${{ inputs.uuid }}"
       run_name: "ci(#${{ inputs.pr_number }}@${{ needs.setup.outputs.git_sha_short }}): ${{ inputs.uuid }}"
       goal: "${{ inputs.goal }}"