Change branding

Author: Donnerbart

action.yml

@@ -90,4 +90,4 @@ runs:
         echo "test-suite=${TESTS}" >> $GITHUB_OUTPUT
 branding:
   icon: shuffle
-  color: yellow
+  color: blue

generate-split-index-json/action.yml

@@ -25,4 +25,4 @@ runs:
         echo "split-index-list=${INDEX_JSON}" >> "$GITHUB_OUTPUT"
 branding:
   icon: list
-  color: yellow
+  color: blue