Mount kernel_build.sh from repo to use latest version with kABI check

Author: shreeya-patel98

.github/workflows/kernel-build-and-test-x86_64.yml

@@ -55,6 +55,7 @@ jobs:
           -v "$PWD/kernel-src-tree":/src \
           -v "$PWD/output":/output \
           -v "$PWD/kernel-container-build/build-container":/usr/local/build-scripts:ro \
+          -v "$PWD/kernel-container-build/container/kernel_build.sh":/usr/libexec/kernel_build.sh:ro \
           -v "$PWD/kernel-container-build/container/check_kabi.sh":/usr/libexec/check_kabi.sh:ro \
           --security-opt label=disable \
           pulp.prod.ciq.dev/ciq/cicd/lts-images/builder \