update: pinning k8s version to 1.26 (#507) * update: pinning k8s version to 1.26 Signed-off-by: namkyu1999 <lak9348@gmail.com> * Fix: add flags to the golangci Signed-off-by: namkyu1999 <lak9348@gmail.com> * fix: update base image because of the CVE-2024-3596 Signed-off-by: namkyu1999 <lak9348@gmail.com> --------- Signed-off-by: namkyu1999 <lak9348@gmail.com>