message: Install - update libCEED requirement to v0.7
diff: @@ -640,12 +640,11 @@ The specific libraries and their options are:
  Options: OCCA_DIR, OCCA_OPT, OCCA_LIB.
  Versions: OCCA >= 1.0.9.
  -- libCEED (optional), used when MFEM_USE_CEED = YES. Requires libCEED v0.6
  - or later version, specifically, git-hash 3d05795 or later.
  +- libCEED (optional), used when MFEM_USE_CEED = YES.
  URL: https://github.com/CEED/libCEED
  https://ceed.exascaleproject.org/libceed
  Options: CEED_DIR, CEED_OPT, CEED_LIB.
  - Versions: libCEED >= 0.6.
  + Versions: libCEED >= 0.7.
  - RAJA (optional), used when MFEM_USE_RAJA = YES.
  Beginning with MFEM v4.1, only RAJA v0.10.0+ is supported.
  