docs:simplify GitHub Actions.

.github/workflows/junit.yml

@@ -36,21 +36,21 @@ jobs:
           fi
           echo $branch_name
           if [[ "$branch_name" == "2024" ]]; then
-            echo "matrix=[17,21]" >> $GITHUB_OUTPUT
+            echo "jdks=[17,21]" >> $GITHUB_OUTPUT
           elif [[ "$branch_name" == "2023" ]]; then
-            echo "matrix=[17,21]" >> $GITHUB_OUTPUT
+            echo "jdks=[17,21]" >> $GITHUB_OUTPUT
           elif [[ "$branch_name" == "2022" ]]; then
-            echo "matrix=[17,21]" >> $GITHUB_OUTPUT
+            echo "jdks=[17,21]" >> $GITHUB_OUTPUT
           elif [[ "$branch_name" == "2021" ]]; then
-            echo "matrix=[8,11,17,21]" >> $GITHUB_OUTPUT
+            echo "jdks=[8,11,17,21]" >> $GITHUB_OUTPUT
           elif [[ "$branch_name" == "2020" ]]; then
-            echo "matrix=[8,11,17,21]" >> $GITHUB_OUTPUT
+            echo "jdks=[8,11,17,21]" >> $GITHUB_OUTPUT
           elif [[ "$branch_name" == "hoxton" ]]; then
-            echo "matrix=[8,11,17,21]" >> $GITHUB_OUTPUT
+            echo "jdks=[8,11,17,21]" >> $GITHUB_OUTPUT
           elif [[ "$branch_name" == "greenwich" ]]; then
-            echo "matrix=[8,11,17,21]" >> $GITHUB_OUTPUT
+            echo "jdks=[8,11,17,21]" >> $GITHUB_OUTPUT
           else
-            echo "matrix=[17]" >> $GITHUB_OUTPUT
+            echo "jdks=[17]" >> $GITHUB_OUTPUT
           fi
           cat $GITHUB_OUTPUT
           shopt -u nocasematch