ci: Fix distro detection

Signed-off-by: Manu Bretelle <chantr4@gmail.com>

helpers.sh

@@ -56,10 +56,10 @@ kernel_build_make_jobs() {
   echo $(( smp > MAX_MAKE_JOBS ? MAX_MAKE_JOBS : smp ))
 }
 
-distro_codename() {
-    DISTRO_CODENAME="noble"
+distrib_codename() {
+    DISTRIB_CODENAME="noble"
     test -f /etc/lsb-release && . /etc/lsb-release
-    echo "${DISTRO_CODENAME}"
+    echo "${DISTRIB_CODENAME}"
 }
 
 # Convert a platform (as returned by uname -m) to the kernel

setup-build-env/install_clang.sh

@@ -14,9 +14,9 @@ else
     REPO_DISTRO_SUFFIX="-${LLVM_VERSION}"
 fi
 
-DISTRO_CODENAME=$(distro_codename)
+DISTRIB_CODENAME=$(distrib_codename)
 
-echo "deb https://apt.llvm.org/${DISTRO_CODENAME}/ llvm-toolchain-${DISTRO_CODENAME}${REPO_DISTRO_SUFFIX} main" | sudo tee /etc/apt/sources.list.d/llvm.list
+echo "deb https://apt.llvm.org/${DISTRIB_CODENAME}/ llvm-toolchain-${DISTRIB_CODENAME}${REPO_DISTRO_SUFFIX} main" | sudo tee /etc/apt/sources.list.d/llvm.list
 n=0
 while [ $n -lt 5 ]; do
   set +e && \