Restore removal of unused directory (apache#773)

Author: edespino

.github/workflows/build-cloudberry.yml

@@ -258,6 +258,10 @@ jobs:
           chmod -R 755 .
           chmod 777 "${LOGS_DIR}"
 
+          df -kh /
+          rm -rf /__t/*
+          df -kh /
+
           df -h | tee -a "${LOGS_DIR}/details/disk-usage.log"
           free -h | tee -a "${LOGS_DIR}/details/memory-usage.log"
 
@@ -511,6 +515,10 @@ jobs:
           chmod -R 755 .
           chmod 777 "${LOGS_DIR}"
 
+          df -kh /
+          rm -rf /__t/*
+          df -kh /
+
           df -h | tee -a "${LOGS_DIR}/details/disk-usage.log"
           free -h | tee -a "${LOGS_DIR}/details/memory-usage.log"
 
@@ -769,6 +777,10 @@ jobs:
           chmod -R 755 .
           chmod 777 "${LOGS_DIR}"
 
+          df -kh /
+          rm -rf /__t/*
+          df -kh /
+
           df -h | tee -a "${LOGS_DIR}/details/disk-usage.log"
           free -h | tee -a "${LOGS_DIR}/details/memory-usage.log"