sdbusplus: srcrev bump 69f5b901cd..7662fa6932

George Liu (1):
      match: Fix propertiesChangedNamespace method

Patrick Williams (1):
      util: variant: add static assert

Paul Fertser (1):
      utility: add merge_variants_t

Change-Id: Ie3dfd312650905014be558106fd808c5372168dc
Signed-off-by: Andrew Geissler <openbmcbump-github@yahoo.com>