Fix debug_log bash function to support multi-line logging

Author: gaggle

.github/actions/build-tar-image/action.yml

@@ -162,7 +162,9 @@ runs:
         
         debug_log() {
           if [ "${RUNNER_DEBUG:-0}" = "1" ]; then
-            echo "##[debug]$1"
+            echo "$1" | while IFS= read -r line; do
+              echo "##[debug]$line"
+            done
           fi
         }
 

.github/actions/load-tar-image/action.yml

@@ -23,10 +23,12 @@ runs:
     - name: Set outputs
       run: |
         set -euo pipefail
-        
+
         debug_log() {
           if [ "${RUNNER_DEBUG:-0}" = "1" ]; then
-            echo "##[debug]$1"
+            echo "$1" | while IFS= read -r line; do
+              echo "##[debug]$line"
+            done
           fi
         }