Merge pull request #27113 from keszybz/variable-expansion-rework

Rework serialization of command lines in pid1 and make run not expand variables

diff --cc src/core/dbus-execute.c
Simple merge

diff --cc src/core/dbus-service.c
Simple merge

diff --cc src/core/unit.c
Simple merge

diff --cc src/core/unit.h
Simple merge

diff --cc src/run/run.c
Simple merge

diff --cc src/shared/tpm2-util.c
Simple merge

diff --cc src/test/meson.build
Simple merge