utils: Bump llvm version to 20.1.0

Signed-off-by: Dakkshesh <[email protected]>

Author: beakthoven

common/utils.sh

@@ -23,7 +23,7 @@ export AVR_LIBC_VER="2.2.1-clang"
 export BINUTILS_VERSION="2.44"
 export GCC_VER="14.2.0"
 export NEWLIB_VER="4.5.0.20241231"
-export LLVM_VERSION="20.1.0-rc3"
+export LLVM_VERSION="20.1.0"
 
 # Configuration
 SOURCE_DIR="${CURR_DIR}/source"