bmcweb: srcrev bump 6dcbb8675d..93f7a0d6a3

Ed Tanous (4):
      Change variable scopes
      Avoid copy
      Fix cppcheck error
      Use owning strings for aggregator URI

Gunnar Mills (1):
      Return bad request if can't construct

Change-Id: I097f216d38b9b0e1ff2db43ebdcc83e688a64894
Signed-off-by: Andrew Geissler <openbmcbump-github@yahoo.com>