[glib] (12 commits) ...Merge branch 'gdbus-auth-test-timeout' into 'main'

[Philip Withnall <pwithnall src gnome org>]

Summary of changes:

  404d5d4... tests: Ensure timeout source is removed in gdbus-auth test
  a3c7687... tests: Isolate directory access for gdbus-non-socket test
  8cff531... tests: Isolate directory access for gdbus-connection-flush 
  fd43391... tests: Use g_assert_*() rather than g_assert() in spawn-mul
  d6f99e5... tests: Remove global variables from spawn-multithreaded
  8cb4423... tests: Remove sources when done in spawn-multithreaded
  7b004d4... tests: Fix a memory leak in spawn-multithreaded
  54748d3... tests: Lower thread TTLs in spawn-multithreaded
  ca99cf0... tests: Use separate GMainContext in thread in spawn-multith
  3f753b0... tests: Fix the prototype of a GChildWatchFunc in spawn-mult
  c455d0e... tests: Correctly exit and join the worker threads in spawn-
  1094144... Merge branch 'gdbus-auth-test-timeout' into 'main'