ci: install-clang.sh: install the requested version

Signed-off-by: Emil Velikov <[email protected]>

Author: evelikov

.github/workflows/install-clang.sh

@@ -27,6 +27,6 @@ if ! which $CC >/dev/null 2>&1; then
 	echo "clang-$llvm_version missed in the image, installing from llvm"
 	echo "$sources" | sudo tee -a /etc/apt/sources.list
 	sudo apt-get update
-	sudo apt-get install -y --no-install-recommends clang-15
+	sudo apt-get install -y --no-install-recommends clang-$llvm_version
 fi