Fix clang format and cmake files for fmt 8.1.1

contrib/fmt-8.1.1/.clang-format

@@ -1,8 +1 @@
-# Run manually to reformat a file:
-# clang-format -i --style=file <file>
-Language: Cpp
-BasedOnStyle: Google
-IndentPPDirectives: AfterHash
-IndentCaseLabels: false
-AlwaysBreakTemplateDeclarations: false
-DerivePointerAlignment: false
+DisableFormat: true

contrib/fmt-8.1.1/CMakeLists.txt

@@ -241,7 +241,7 @@ else()
   set(FMT_SOURCES src/format.cc)
 endif ()
 
-add_library(fmt ${FMT_SOURCES} ${FMT_HEADERS} README.rst ChangeLog.rst)
+add_library(fmt ${FMT_SOURCES} ${FMT_HEADERS})
 add_library(fmt::fmt ALIAS fmt)
 
 if (HAVE_STRTOD_L)