fix(ci):

.github/workflows/solidity-test.yml

@@ -59,13 +59,10 @@ jobs:
       - name: Get previous gas results
         working-directory: ${{ env.working-directory }}
         run: |
-          git checkout -b temp-branch
-          git reset --hard origin/${{ github.base_ref || 'main' }}
-          if [ -f previous_gas_results.txt ]; then
-            echo "previous_gas_results=$(cat previous_gas_results.txt)" >> $GITHUB_ENV
-          else
-            echo "previous_gas_results=" >> $GITHUB_ENV
-          fi
+          git checkout HEAD^1
+          forge test --match-contract PragmaDecoderGasTest -vvv | grep -E '^[A-Za-z]+,[0-9]+$' > previous_gas_report.txt
+          echo "previous_gas_results=$(cat previous_gas_report.txt | tr '\n' ',' | sed 's/,$//')" >> $GITHUB_ENV
+          git checkout -
 
       - name: Compare gas results
         id: compare-gas
@@ -77,10 +74,7 @@ jobs:
             echo '```'
             
             IFS=',' read -ra current_array <<< "$current_gas_results"
-            
-            if [ -f previous_gas_results.txt ]; then
-              IFS=',' read -ra previous_array <<< "$(cat previous_gas_results.txt)"
-            fi
+            IFS=',' read -ra previous_array <<< "$previous_gas_results"
             
             for i in "${!current_array[@]}"; do
               IFS=',' read -r test current <<< "${current_array[$i]}"
@@ -101,7 +95,7 @@ jobs:
                   echo "Change: N/A (Test name mismatch)"
                 fi
               else
-                echo "Change: N/A (First run)"
+                echo "Change: N/A (New test)"
               fi
               echo ""
             done
@@ -110,9 +104,6 @@ jobs:
             echo 'EOF'
           } >> $GITHUB_OUTPUT
 
-          # Update previous_gas_results.txt
-          echo "$current_gas_results" > previous_gas_results.txt
-
       - name: Comment PR
         uses: actions/github-script@v6
         if: github.event_name == 'pull_request'