Fix Clean up Local Registry on manual event workflow

Fix helm test For Call workflow

Signed-off-by: ZePan110 <ze.pan@intel.com>

Author: ZePan110

.github/workflows/_helm-e2e.yml

@@ -97,7 +97,7 @@ jobs:
 
   helm-test:
     needs: [get-test-case]
-    if: ${{ fromJSON(needs.get-test-case.outputs.value_files).length != 0 }}
+    if: ${{ needs.get-test-case.outputs.value_files != '[]' }}
     strategy:
       matrix:
         value_file: ${{ fromJSON(needs.get-test-case.outputs.value_files) }}

.github/workflows/manual-reset-local-registry.yml

@@ -33,7 +33,7 @@ jobs:
 
   clean-up:
     needs: get-build-matrix
-    if: ${{ fromJSON(needs.get-build-matrix.outputs.nodes).length != 0 }}
+    if: ${{ needs.get-image-list.outputs.matrix != '' }}
     strategy:
       matrix:
         node: ${{ fromJson(needs.get-build-matrix.outputs.nodes) }}
@@ -48,7 +48,7 @@ jobs:
 
   build:
     needs: [get-build-matrix, clean-up]
-    if: ${{ fromJSON(needs.get-build-matrix.outputs.nodes).length != 0 }}
+    if: ${{ needs.get-image-list.outputs.matrix != '' }}
     strategy:
       matrix:
         example: ${{ fromJson(needs.get-build-matrix.outputs.examples) }}