dom0/core: fix QubesDaemonPidfile to match ContextManager signature
dom0/core: fix QubesDaemonPidfile to match ContextManager signature

QubesOS/qubes-core-admin,woju/qubes-core-admin,QubesOS/qubes-core-admin,marmarek/qubes-core-admin,woju/qubes-core-admin,woju/qubes-core-admin,marmarek/qubes-core-admin,QubesOS/qubes-core-admin,woju/qubes-core-admin,marmarek/qubes-core-admin