Fix quote escaping in log_error printf for Docker inline script

- Changed single quotes to double quotes in printf statement
- Prevents bash syntax error when inline script is passed to docker run -c
- Fixes DEB packaging stage execution failure

qt6-after/qt6-migrated-legatus/new_docker_build_release2.sh

@@ -89,7 +89,7 @@ log_info() {
 }
 
 log_error() {
-  printf 'ERROR: %s\n' "$*" >&2
+  printf "ERROR: %s\n" "$*" >&2
 }
 
 die() {
@@ -710,7 +710,7 @@ log_info() {
 }
 
 log_error() {
-  printf 'ERROR: %s\n' "$*" >&2
+  printf "ERROR: %s\n" "$*" >&2
 }
 
 die() {