Hmm ... It's impossible ;-) This RPM doesn't exist on any FTP server

Provides :
clang-devel
clang-devel(x86-32)
cmake(Clang)
cmake(clang)

Requires :

clang(x86-32) = 12.0.1-2.module_el8.6.0+937+1cafe22c
clang-libs = 12.0.1-2.module_el8.6.0+937+1cafe22c
clang-tools-extra(x86-32) = 12.0.1-2.module_el8.6.0+937+1cafe22c
cmake-filesystem(x86-32)
libclang-cpp.so.12
libclang.so.12
rpmlib(CompressedFileNames) <= 3.0.4-1
rpmlib(FileDigests) <= 4.6.0-1
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
rpmlib(PayloadIsXz) <= 5.2-1

Content of RPM :
/usr/include/clang
/usr/include/clang-c
/usr/include/clang-c/BuildSystem.h
/usr/include/clang-c/CXCompilationDatabase.h
/usr/include/clang-c/CXErrorCode.h
/usr/include/clang-c/CXString.h
/usr/include/clang-c/Documentation.h
/usr/include/clang-c/ExternC.h
/usr/include/clang-c/FatalErrorHandler.h
/usr/include/clang-c/Index.h
/usr/include/clang-c/Platform.h
/usr/include/clang-c/Rewrite.h
/usr/include/clang/APINotes
/usr/include/clang/APINotes/APINotesYAMLCompiler.h
/usr/include/clang/APINotes/Types.h
/usr/include/clang/ARCMigrate
/usr/include/clang/ARCMigrate/ARCMT.h
/usr/include/clang/ARCMigrate/ARCMTActions.h
/usr/include/clang/ARCMigrate/FileRemapper.h
/usr/include/clang/AST
/usr/include/clang/AST/APValue.h
/usr/include/clang/AST/AST.h
/usr/include/clang/AST/ASTConcept.h
/usr/include/clang/AST/ASTConsumer.h
/usr/include/clang/AST/ASTContext.h
/usr/include/clang/AST/ASTContextAllocate.h
/usr/include/clang/AST/ASTDiagnostic.h
/usr/include/clang/AST/ASTDumper.h
/usr/include/clang/AST/ASTDumperUtils.h
/usr/include/clang/AST/ASTFwd.h
There is 672 files more in these RPM.